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Finding the Fourth Proportional to 482,958.80, 724,434.60 and 145,998.80

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Solution

The fourth proportional to 482,958.80, 724,434.60 and 145,998.80 is: 218,997.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,958.80 : 724,434.60 = 145,998.80 : x
  2. Step 2: Convert to fraction form
    482,958.80/724,434.60 = 145,998.80/x
  3. Step 3: Cross multiply
    482,958.80x = 724,434.60 × 145,998.80
  4. Step 4: Simplify right side
    482,958.80x = 105,766,582,278.48
  5. Step 5: Solve for x
    x = 105,766,582,278.48/482,958.80
  6. Step 6: Final answer
    x = 218,997.11

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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.