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Finding the Fourth Proportional to 543,162.62, 749,654.52 and 316,808.12

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Solution

The fourth proportional to 543,162.62, 749,654.52 and 316,808.12 is: 437,247.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,162.62 : 749,654.52 = 316,808.12 : x
  2. Step 2: Convert to fraction form
    543,162.62/749,654.52 = 316,808.12/x
  3. Step 3: Cross multiply
    543,162.62x = 749,654.52 × 316,808.12
  4. Step 4: Simplify right side
    543,162.62x = 237,496,639,130.70
  5. Step 5: Solve for x
    x = 237,496,639,130.70/543,162.62
  6. Step 6: Final answer
    x = 437,247.76

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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.