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Finding the Fourth Proportional to 482,912.55, 724,365.23 and 145,952.55

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Solution

The fourth proportional to 482,912.55, 724,365.23 and 145,952.55 is: 218,927.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,912.55 : 724,365.23 = 145,952.55 : x
  2. Step 2: Convert to fraction form
    482,912.55/724,365.23 = 145,952.55/x
  3. Step 3: Cross multiply
    482,912.55x = 724,365.23 × 145,952.55
  4. Step 4: Simplify right side
    482,912.55x = 105,722,951,720.07
  5. Step 5: Solve for x
    x = 105,722,951,720.07/482,912.55
  6. Step 6: Final answer
    x = 218,927.74

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1.5x scale

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.