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Finding the Fourth Proportional to 539,082.40, 808,234.80 and 352,199.20

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Solution

The fourth proportional to 539,082.40, 808,234.80 and 352,199.20 is: 528,044.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,082.40 : 808,234.80 = 352,199.20 : x
  2. Step 2: Convert to fraction form
    539,082.40/808,234.80 = 352,199.20/x
  3. Step 3: Cross multiply
    539,082.40x = 808,234.80 × 352,199.20
  4. Step 4: Simplify right side
    539,082.40x = 284,659,649,972.16
  5. Step 5: Solve for x
    x = 284,659,649,972.16/539,082.40
  6. Step 6: Final answer
    x = 528,044.78

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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.