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Finding the Fourth Proportional to 482,978.36, 724,444.17 and 183,435.57

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Solution

The fourth proportional to 482,978.36, 724,444.17 and 183,435.57 is: 275,144.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,978.36 : 724,444.17 = 183,435.57 : x
  2. Step 2: Convert to fraction form
    482,978.36/724,444.17 = 183,435.57/x
  3. Step 3: Cross multiply
    482,978.36x = 724,444.17 × 183,435.57
  4. Step 4: Simplify right side
    482,978.36x = 132,888,829,257.13
  5. Step 5: Solve for x
    x = 132,888,829,257.13/482,978.36
  6. Step 6: Final answer
    x = 275,144.48

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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.