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Finding the Fourth Proportional to 516,145.35, 773,344.43 and 316,047.92

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Solution

The fourth proportional to 516,145.35, 773,344.43 and 316,047.92 is: 473,536.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,145.35 : 773,344.43 = 316,047.92 : x
  2. Step 2: Convert to fraction form
    516,145.35/773,344.43 = 316,047.92/x
  3. Step 3: Cross multiply
    516,145.35x = 773,344.43 × 316,047.92
  4. Step 4: Simplify right side
    516,145.35x = 244,413,893,098.12
  5. Step 5: Solve for x
    x = 244,413,893,098.12/516,145.35
  6. Step 6: Final answer
    x = 473,536.95

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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.