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Finding the Fourth Proportional to 723,798.96, 998,188.56 and 451,891.68

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Solution

The fourth proportional to 723,798.96, 998,188.56 and 451,891.68 is: 623,202.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,798.96 : 998,188.56 = 451,891.68 : x
  2. Step 2: Convert to fraction form
    723,798.96/998,188.56 = 451,891.68/x
  3. Step 3: Cross multiply
    723,798.96x = 998,188.56 × 451,891.68
  4. Step 4: Simplify right side
    723,798.96x = 451,073,105,335.18
  5. Step 5: Solve for x
    x = 451,073,105,335.18/723,798.96
  6. Step 6: Final answer
    x = 623,202.20

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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.