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Finding the Fourth Proportional to 543,166.62, 749,660.04 and 316,812.12

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Solution

The fourth proportional to 543,166.62, 749,660.04 and 316,812.12 is: 437,253.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,166.62 : 749,660.04 = 316,812.12 : x
  2. Step 2: Convert to fraction form
    543,166.62/749,660.04 = 316,812.12/x
  3. Step 3: Cross multiply
    543,166.62x = 749,660.04 × 316,812.12
  4. Step 4: Simplify right side
    543,166.62x = 237,501,386,551.69
  5. Step 5: Solve for x
    x = 237,501,386,551.69/543,166.62
  6. Step 6: Final answer
    x = 437,253.28

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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.