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Finding the Fourth Proportional to 474,049.52, 711,074.32 and 189,869.12

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Solution

The fourth proportional to 474,049.52, 711,074.32 and 189,869.12 is: 284,803.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,049.52 : 711,074.32 = 189,869.12 : x
  2. Step 2: Convert to fraction form
    474,049.52/711,074.32 = 189,869.12/x
  3. Step 3: Cross multiply
    474,049.52x = 711,074.32 × 189,869.12
  4. Step 4: Simplify right side
    474,049.52x = 135,011,055,393.00
  5. Step 5: Solve for x
    x = 135,011,055,393.00/474,049.52
  6. Step 6: Final answer
    x = 284,803.70

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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.