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Finding the Fourth Proportional to 659,600.20, 989,400.30 and 344,016.10

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Solution

The fourth proportional to 659,600.20, 989,400.30 and 344,016.10 is: 516,024.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,600.20 : 989,400.30 = 344,016.10 : x
  2. Step 2: Convert to fraction form
    659,600.20/989,400.30 = 344,016.10/x
  3. Step 3: Cross multiply
    659,600.20x = 989,400.30 × 344,016.10
  4. Step 4: Simplify right side
    659,600.20x = 340,369,632,544.83
  5. Step 5: Solve for x
    x = 340,369,632,544.83/659,600.20
  6. Step 6: Final answer
    x = 516,024.15

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Similar ratio
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1.5x scale

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.