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Finding the Fourth Proportional to 669,814.43, 924,345 and 363,892.01

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Solution

The fourth proportional to 669,814.43, 924,345 and 363,892.01 is: 502,171.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,814.43 : 924,345 = 363,892.01 : x
  2. Step 2: Convert to fraction form
    669,814.43/924,345 = 363,892.01/x
  3. Step 3: Cross multiply
    669,814.43x = 924,345 × 363,892.01
  4. Step 4: Simplify right side
    669,814.43x = 336,361,755,361.73
  5. Step 5: Solve for x
    x = 336,361,755,361.73/669,814.43
  6. Step 6: Final answer
    x = 502,171.56

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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.