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Finding the Fourth Proportional to 534,008.38, 800,128.05 and 375,462.22

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Solution

The fourth proportional to 534,008.38, 800,128.05 and 375,462.22 is: 562,571.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,008.38 : 800,128.05 = 375,462.22 : x
  2. Step 2: Convert to fraction form
    534,008.38/800,128.05 = 375,462.22/x
  3. Step 3: Cross multiply
    534,008.38x = 800,128.05 × 375,462.22
  4. Step 4: Simplify right side
    534,008.38x = 300,417,853,937.27
  5. Step 5: Solve for x
    x = 300,417,853,937.27/534,008.38
  6. Step 6: Final answer
    x = 562,571.42

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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.