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Finding the Fourth Proportional to 1,262,461,420.83, 1,742,250,565.38 and 705,544,451.49

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Solution

The fourth proportional to 1,262,461,420.83, 1,742,250,565.38 and 705,544,451.49 is: 973,681,412.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,461,420.83 : 1,742,250,565.38 = 705,544,451.49 : x
  2. Step 2: Convert to fraction form
    1,262,461,420.83/1,742,250,565.38 = 705,544,451.49/x
  3. Step 3: Cross multiply
    1,262,461,420.83x = 1,742,250,565.38 × 705,544,451.49
  4. Step 4: Simplify right side
    1,262,461,420.83x = 1,229,235,219,509,174,528
  5. Step 5: Solve for x
    x = 1,229,235,219,509,174,528/1,262,461,420.83
  6. Step 6: Final answer
    x = 973,681,412.54

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Half scale
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Double scale
Find fourth proportional to 1,262,461,421.83, 1,742,250,566.76 and 705,544,452.49
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.