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Finding the Fourth Proportional to 629,920.80, 944,881.20 and 488,203.20

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Solution

The fourth proportional to 629,920.80, 944,881.20 and 488,203.20 is: 732,304.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,920.80 : 944,881.20 = 488,203.20 : x
  2. Step 2: Convert to fraction form
    629,920.80/944,881.20 = 488,203.20/x
  3. Step 3: Cross multiply
    629,920.80x = 944,881.20 × 488,203.20
  4. Step 4: Simplify right side
    629,920.80x = 461,294,025,459.84
  5. Step 5: Solve for x
    x = 461,294,025,459.84/629,920.80
  6. Step 6: Final answer
    x = 732,304.80

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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.