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Finding the Fourth Proportional to 482,978.87, 724,444.92 and 183,436.07

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Solution

The fourth proportional to 482,978.87, 724,444.92 and 183,436.07 is: 275,145.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,978.87 : 724,444.92 = 183,436.07 : x
  2. Step 2: Convert to fraction form
    482,978.87/724,444.92 = 183,436.07/x
  3. Step 3: Cross multiply
    482,978.87x = 724,444.92 × 183,436.07
  4. Step 4: Simplify right side
    482,978.87x = 132,889,325,434.04
  5. Step 5: Solve for x
    x = 132,889,325,434.04/482,978.87
  6. Step 6: Final answer
    x = 275,145.22

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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.