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Finding the Fourth Proportional to 393,297.68, 590,537.28 and 225,008

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Solution

The fourth proportional to 393,297.68, 590,537.28 and 225,008 is: 337,849.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,297.68 : 590,537.28 = 225,008 : x
  2. Step 2: Convert to fraction form
    393,297.68/590,537.28 = 225,008/x
  3. Step 3: Cross multiply
    393,297.68x = 590,537.28 × 225,008
  4. Step 4: Simplify right side
    393,297.68x = 132,875,612,298.24
  5. Step 5: Solve for x
    x = 132,875,612,298.24/393,297.68
  6. Step 6: Final answer
    x = 337,849.98

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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.