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Finding the Fourth Proportional to 669,770.39, 924,298.35 and 363,857.69

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Solution

The fourth proportional to 669,770.39, 924,298.35 and 363,857.69 is: 502,131.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,770.39 : 924,298.35 = 363,857.69 : x
  2. Step 2: Convert to fraction form
    669,770.39/924,298.35 = 363,857.69/x
  3. Step 3: Cross multiply
    669,770.39x = 924,298.35 × 363,857.69
  4. Step 4: Simplify right side
    669,770.39x = 336,313,062,501.81
  5. Step 5: Solve for x
    x = 336,313,062,501.81/669,770.39
  6. Step 6: Final answer
    x = 502,131.88

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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.