Home / 657,200.85-985,801.28-432,814.65

Finding the Fourth Proportional to 657,200.85, 985,801.28 and 432,814.65

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Solution

The fourth proportional to 657,200.85, 985,801.28 and 432,814.65 is: 649,221.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,200.85 : 985,801.28 = 432,814.65 : x
  2. Step 2: Convert to fraction form
    657,200.85/985,801.28 = 432,814.65/x
  3. Step 3: Cross multiply
    657,200.85x = 985,801.28 × 432,814.65
  4. Step 4: Simplify right side
    657,200.85x = 426,669,233,808.68
  5. Step 5: Solve for x
    x = 426,669,233,808.68/657,200.85
  6. Step 6: Final answer
    x = 649,221.98

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Double scale
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1.5x scale

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.