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Finding the Fourth Proportional to 418,626.08, 577,729.17 and 246,658.64

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Solution

The fourth proportional to 418,626.08, 577,729.17 and 246,658.64 is: 340,403.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,626.08 : 577,729.17 = 246,658.64 : x
  2. Step 2: Convert to fraction form
    418,626.08/577,729.17 = 246,658.64/x
  3. Step 3: Cross multiply
    418,626.08x = 577,729.17 × 246,658.64
  4. Step 4: Simplify right side
    418,626.08x = 142,501,888,471.88
  5. Step 5: Solve for x
    x = 142,501,888,471.88/418,626.08
  6. Step 6: Final answer
    x = 340,403.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.