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Finding the Fourth Proportional to 546,508.12, 753,982.44 and 316,938.73

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Solution

The fourth proportional to 546,508.12, 753,982.44 and 316,938.73 is: 437,260.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,508.12 : 753,982.44 = 316,938.73 : x
  2. Step 2: Convert to fraction form
    546,508.12/753,982.44 = 316,938.73/x
  3. Step 3: Cross multiply
    546,508.12x = 753,982.44 × 316,938.73
  4. Step 4: Simplify right side
    546,508.12x = 238,966,236,975.90
  5. Step 5: Solve for x
    x = 238,966,236,975.90/546,508.12
  6. Step 6: Final answer
    x = 437,260.18

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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.