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Finding the Fourth Proportional to 723,932.64, 998,691.12 and 451,824.48

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Solution

The fourth proportional to 723,932.64, 998,691.12 and 451,824.48 is: 623,308.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,932.64 : 998,691.12 = 451,824.48 : x
  2. Step 2: Convert to fraction form
    723,932.64/998,691.12 = 451,824.48/x
  3. Step 3: Cross multiply
    723,932.64x = 998,691.12 × 451,824.48
  4. Step 4: Simplify right side
    723,932.64x = 451,233,095,974.62
  5. Step 5: Solve for x
    x = 451,233,095,974.62/723,932.64
  6. Step 6: Final answer
    x = 623,308.12

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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.