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Finding the Fourth Proportional to 669,641.59, 924,112.17 and 363,723.94

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Solution

The fourth proportional to 669,641.59, 924,112.17 and 363,723.94 is: 501,942.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,641.59 : 924,112.17 = 363,723.94 : x
  2. Step 2: Convert to fraction form
    669,641.59/924,112.17 = 363,723.94/x
  3. Step 3: Cross multiply
    669,641.59x = 924,112.17 × 363,723.94
  4. Step 4: Simplify right side
    669,641.59x = 336,121,714,853.79
  5. Step 5: Solve for x
    x = 336,121,714,853.79/669,641.59
  6. Step 6: Final answer
    x = 501,942.71

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Half scale
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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.