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Finding the Fourth Proportional to 669,685.39, 924,174.25 and 363,766.88

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Solution

The fourth proportional to 669,685.39, 924,174.25 and 363,766.88 is: 502,002.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,685.39 : 924,174.25 = 363,766.88 : x
  2. Step 2: Convert to fraction form
    669,685.39/924,174.25 = 363,766.88/x
  3. Step 3: Cross multiply
    669,685.39x = 924,174.25 × 363,766.88
  4. Step 4: Simplify right side
    669,685.39x = 336,183,984,899.86
  5. Step 5: Solve for x
    x = 336,183,984,899.86/669,685.39
  6. Step 6: Final answer
    x = 502,002.86

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.