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Finding the Fourth Proportional to 482,666.88, 724,104.32 and 145,679.36

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Solution

The fourth proportional to 482,666.88, 724,104.32 and 145,679.36 is: 218,550.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,666.88 : 724,104.32 = 145,679.36 : x
  2. Step 2: Convert to fraction form
    482,666.88/724,104.32 = 145,679.36/x
  3. Step 3: Cross multiply
    482,666.88x = 724,104.32 × 145,679.36
  4. Step 4: Simplify right side
    482,666.88x = 105,487,053,910.84
  5. Step 5: Solve for x
    x = 105,487,053,910.84/482,666.88
  6. Step 6: Final answer
    x = 218,550.43

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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.