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Finding the Fourth Proportional to 501,021.48, 750,744.36 and 387,446.52

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Solution

The fourth proportional to 501,021.48, 750,744.36 and 387,446.52 is: 580,560.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,021.48 : 750,744.36 = 387,446.52 : x
  2. Step 2: Convert to fraction form
    501,021.48/750,744.36 = 387,446.52/x
  3. Step 3: Cross multiply
    501,021.48x = 750,744.36 × 387,446.52
  4. Step 4: Simplify right side
    501,021.48x = 290,873,289,691.63
  5. Step 5: Solve for x
    x = 290,873,289,691.63/501,021.48
  6. Step 6: Final answer
    x = 580,560.52

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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.