Home / 1,003,961,255.58-1,385,500,177.38-557,943,417.72

Finding the Fourth Proportional to 1,003,961,255.58, 1,385,500,177.38 and 557,943,417.72

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Solution

The fourth proportional to 1,003,961,255.58, 1,385,500,177.38 and 557,943,417.72 is: 769,980,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,003,961,255.58 : 1,385,500,177.38 = 557,943,417.72 : x
  2. Step 2: Convert to fraction form
    1,003,961,255.58/1,385,500,177.38 = 557,943,417.72/x
  3. Step 3: Cross multiply
    1,003,961,255.58x = 1,385,500,177.38 × 557,943,417.72
  4. Step 4: Simplify right side
    1,003,961,255.58x = 773,030,704,219,063,552
  5. Step 5: Solve for x
    x = 773,030,704,219,063,552/1,003,961,255.58
  6. Step 6: Final answer
    x = 769,980,614.21

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Half scale
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Double scale
Find fourth proportional to 1,003,961,256.58, 1,385,500,178.76 and 557,943,418.72
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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.