Home / 657,291.10-985,936.65-432,904.90

Finding the Fourth Proportional to 657,291.10, 985,936.65 and 432,904.90

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Solution

The fourth proportional to 657,291.10, 985,936.65 and 432,904.90 is: 649,357.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,291.10 : 985,936.65 = 432,904.90 : x
  2. Step 2: Convert to fraction form
    657,291.10/985,936.65 = 432,904.90/x
  3. Step 3: Cross multiply
    657,291.10x = 985,936.65 × 432,904.90
  4. Step 4: Simplify right side
    657,291.10x = 426,816,806,874.59
  5. Step 5: Solve for x
    x = 426,816,806,874.59/657,291.10
  6. Step 6: Final answer
    x = 649,357.35

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.