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Finding the Fourth Proportional to 363,630.38, 545,066.42 and 203,471.51

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Solution

The fourth proportional to 363,630.38, 545,066.42 and 203,471.51 is: 304,995.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,630.38 : 545,066.42 = 203,471.51 : x
  2. Step 2: Convert to fraction form
    363,630.38/545,066.42 = 203,471.51/x
  3. Step 3: Cross multiply
    363,630.38x = 545,066.42 × 203,471.51
  4. Step 4: Simplify right side
    363,630.38x = 110,905,486,851.00
  5. Step 5: Solve for x
    x = 110,905,486,851.00/363,630.38
  6. Step 6: Final answer
    x = 304,995.11

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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.