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Finding the Fourth Proportional to 665,244.03, 998,496.90 and 411,757.74

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Solution

The fourth proportional to 665,244.03, 998,496.90 and 411,757.74 is: 618,027.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,244.03 : 998,496.90 = 411,757.74 : x
  2. Step 2: Convert to fraction form
    665,244.03/998,496.90 = 411,757.74/x
  3. Step 3: Cross multiply
    665,244.03x = 998,496.90 × 411,757.74
  4. Step 4: Simplify right side
    665,244.03x = 411,138,826,941.01
  5. Step 5: Solve for x
    x = 411,138,826,941.01/665,244.03
  6. Step 6: Final answer
    x = 618,027.09

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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.