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Finding the Fourth Proportional to 542,918.70, 749,292.48 and 313,531.92

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Solution

The fourth proportional to 542,918.70, 749,292.48 and 313,531.92 is: 432,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,918.70 : 749,292.48 = 313,531.92 : x
  2. Step 2: Convert to fraction form
    542,918.70/749,292.48 = 313,531.92/x
  3. Step 3: Cross multiply
    542,918.70x = 749,292.48 × 313,531.92
  4. Step 4: Simplify right side
    542,918.70x = 234,927,109,895.96
  5. Step 5: Solve for x
    x = 234,927,109,895.96/542,918.70
  6. Step 6: Final answer
    x = 432,711.40

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.