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Finding the Fourth Proportional to 438,909.56, 605,697.72 and 237,705.56

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Solution

The fourth proportional to 438,909.56, 605,697.72 and 237,705.56 is: 328,035.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,909.56 : 605,697.72 = 237,705.56 : x
  2. Step 2: Convert to fraction form
    438,909.56/605,697.72 = 237,705.56/x
  3. Step 3: Cross multiply
    438,909.56x = 605,697.72 × 237,705.56
  4. Step 4: Simplify right side
    438,909.56x = 143,977,715,723.32
  5. Step 5: Solve for x
    x = 143,977,715,723.32/438,909.56
  6. Step 6: Final answer
    x = 328,035.04

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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.