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Finding the Fourth Proportional to 543,565.74, 750,126 and 317,167.50

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Solution

The fourth proportional to 543,565.74, 750,126 and 317,167.50 is: 437,694.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,565.74 : 750,126 = 317,167.50 : x
  2. Step 2: Convert to fraction form
    543,565.74/750,126 = 317,167.50/x
  3. Step 3: Cross multiply
    543,565.74x = 750,126 × 317,167.50
  4. Step 4: Simplify right side
    543,565.74x = 237,915,588,105
  5. Step 5: Solve for x
    x = 237,915,588,105/543,565.74
  6. Step 6: Final answer
    x = 437,694.23

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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.