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Finding the Fourth Proportional to 547,229.60, 820,844.40 and 535,565.60

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Solution

The fourth proportional to 547,229.60, 820,844.40 and 535,565.60 is: 803,348.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,229.60 : 820,844.40 = 535,565.60 : x
  2. Step 2: Convert to fraction form
    547,229.60/820,844.40 = 535,565.60/x
  3. Step 3: Cross multiply
    547,229.60x = 820,844.40 × 535,565.60
  4. Step 4: Simplify right side
    547,229.60x = 439,616,023,592.64
  5. Step 5: Solve for x
    x = 439,616,023,592.64/547,229.60
  6. Step 6: Final answer
    x = 803,348.40

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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.