Home / 761,436.86-1,050,784.09-417,218.09

Finding the Fourth Proportional to 761,436.86, 1,050,784.09 and 417,218.09

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Solution

The fourth proportional to 761,436.86, 1,050,784.09 and 417,218.09 is: 575,761.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,436.86 : 1,050,784.09 = 417,218.09 : x
  2. Step 2: Convert to fraction form
    761,436.86/1,050,784.09 = 417,218.09/x
  3. Step 3: Cross multiply
    761,436.86x = 1,050,784.09 × 417,218.09
  4. Step 4: Simplify right side
    761,436.86x = 438,406,132,992.74
  5. Step 5: Solve for x
    x = 438,406,132,992.74/761,436.86
  6. Step 6: Final answer
    x = 575,761.64

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Half scale
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Double scale
Find fourth proportional to 761,437.86, 1,050,785.47 and 417,219.09
Similar ratio
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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.