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Finding the Fourth Proportional to 475,611.56, 656,343.90 and 260,753.12

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Solution

The fourth proportional to 475,611.56, 656,343.90 and 260,753.12 is: 359,839.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,611.56 : 656,343.90 = 260,753.12 : x
  2. Step 2: Convert to fraction form
    475,611.56/656,343.90 = 260,753.12/x
  3. Step 3: Cross multiply
    475,611.56x = 656,343.90 × 260,753.12
  4. Step 4: Simplify right side
    475,611.56x = 171,143,719,717.97
  5. Step 5: Solve for x
    x = 171,143,719,717.97/475,611.56
  6. Step 6: Final answer
    x = 359,839.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.