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Finding the Fourth Proportional to 546,508.62, 753,983.13 and 316,939.23

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Solution

The fourth proportional to 546,508.62, 753,983.13 and 316,939.23 is: 437,260.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,508.62 : 753,983.13 = 316,939.23 : x
  2. Step 2: Convert to fraction form
    546,508.62/753,983.13 = 316,939.23/x
  3. Step 3: Cross multiply
    546,508.62x = 753,983.13 × 316,939.23
  4. Step 4: Simplify right side
    546,508.62x = 238,966,832,655.19
  5. Step 5: Solve for x
    x = 238,966,832,655.19/546,508.62
  6. Step 6: Final answer
    x = 437,260.87

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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.