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Finding the Fourth Proportional to 624,052.20, 936,078.30 and 491,341.80

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Solution

The fourth proportional to 624,052.20, 936,078.30 and 491,341.80 is: 737,012.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,052.20 : 936,078.30 = 491,341.80 : x
  2. Step 2: Convert to fraction form
    624,052.20/936,078.30 = 491,341.80/x
  3. Step 3: Cross multiply
    624,052.20x = 936,078.30 × 491,341.80
  4. Step 4: Simplify right side
    624,052.20x = 459,934,396,862.94
  5. Step 5: Solve for x
    x = 459,934,396,862.94/624,052.20
  6. Step 6: Final answer
    x = 737,012.70

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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.