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Finding the Fourth Proportional to 373,899.17, 559,954.65 and 215,647.85

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Solution

The fourth proportional to 373,899.17, 559,954.65 and 215,647.85 is: 322,956.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,899.17 : 559,954.65 = 215,647.85 : x
  2. Step 2: Convert to fraction form
    373,899.17/559,954.65 = 215,647.85/x
  3. Step 3: Cross multiply
    373,899.17x = 559,954.65 × 215,647.85
  4. Step 4: Simplify right side
    373,899.17x = 120,753,016,370.00
  5. Step 5: Solve for x
    x = 120,753,016,370.00/373,899.17
  6. Step 6: Final answer
    x = 322,956.10

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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.