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Finding the Fourth Proportional to 402,079.40, 603,119.10 and 244,356.20

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Solution

The fourth proportional to 402,079.40, 603,119.10 and 244,356.20 is: 366,534.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,079.40 : 603,119.10 = 244,356.20 : x
  2. Step 2: Convert to fraction form
    402,079.40/603,119.10 = 244,356.20/x
  3. Step 3: Cross multiply
    402,079.40x = 603,119.10 × 244,356.20
  4. Step 4: Simplify right side
    402,079.40x = 147,375,891,423.42
  5. Step 5: Solve for x
    x = 147,375,891,423.42/402,079.40
  6. Step 6: Final answer
    x = 366,534.30

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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.