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Finding the Fourth Proportional to 403,711.90, 604,401.45 and 246,247.90

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Solution

The fourth proportional to 403,711.90, 604,401.45 and 246,247.90 is: 368,660.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,711.90 : 604,401.45 = 246,247.90 : x
  2. Step 2: Convert to fraction form
    403,711.90/604,401.45 = 246,247.90/x
  3. Step 3: Cross multiply
    403,711.90x = 604,401.45 × 246,247.90
  4. Step 4: Simplify right side
    403,711.90x = 148,832,587,819.46
  5. Step 5: Solve for x
    x = 148,832,587,819.46/403,711.90
  6. Step 6: Final answer
    x = 368,660.39

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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.