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Finding the Fourth Proportional to 629,929.80, 944,894.70 and 619,432.20

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Solution

The fourth proportional to 629,929.80, 944,894.70 and 619,432.20 is: 929,148.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,929.80 : 944,894.70 = 619,432.20 : x
  2. Step 2: Convert to fraction form
    629,929.80/944,894.70 = 619,432.20/x
  3. Step 3: Cross multiply
    629,929.80x = 944,894.70 × 619,432.20
  4. Step 4: Simplify right side
    629,929.80x = 585,298,202,789.34
  5. Step 5: Solve for x
    x = 585,298,202,789.34/629,929.80
  6. Step 6: Final answer
    x = 929,148.30

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Double scale
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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.