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Finding the Fourth Proportional to 401,861.30, 603,387.15 and 224,722.10

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Solution

The fourth proportional to 401,861.30, 603,387.15 and 224,722.10 is: 337,415.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,861.30 : 603,387.15 = 224,722.10 : x
  2. Step 2: Convert to fraction form
    401,861.30/603,387.15 = 224,722.10/x
  3. Step 3: Cross multiply
    401,861.30x = 603,387.15 × 224,722.10
  4. Step 4: Simplify right side
    401,861.30x = 135,594,427,461.02
  5. Step 5: Solve for x
    x = 135,594,427,461.02/401,861.30
  6. Step 6: Final answer
    x = 337,415.99

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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.