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Finding the Fourth Proportional to 431,650.90, 647,476.35 and 332,002.90

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Solution

The fourth proportional to 431,650.90, 647,476.35 and 332,002.90 is: 498,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,650.90 : 647,476.35 = 332,002.90 : x
  2. Step 2: Convert to fraction form
    431,650.90/647,476.35 = 332,002.90/x
  3. Step 3: Cross multiply
    431,650.90x = 647,476.35 × 332,002.90
  4. Step 4: Simplify right side
    431,650.90x = 214,964,025,881.42
  5. Step 5: Solve for x
    x = 214,964,025,881.42/431,650.90
  6. Step 6: Final answer
    x = 498,004.35

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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.