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Finding the Fourth Proportional to 447,654.40, 672,259.20 and 433,657.60

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Solution

The fourth proportional to 447,654.40, 672,259.20 and 433,657.60 is: 651,239.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,654.40 : 672,259.20 = 433,657.60 : x
  2. Step 2: Convert to fraction form
    447,654.40/672,259.20 = 433,657.60/x
  3. Step 3: Cross multiply
    447,654.40x = 672,259.20 × 433,657.60
  4. Step 4: Simplify right side
    447,654.40x = 291,530,311,249.92
  5. Step 5: Solve for x
    x = 291,530,311,249.92/447,654.40
  6. Step 6: Final answer
    x = 651,239.69

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.