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Finding the Fourth Proportional to 393,506.61, 541,726.00 and 375,429.69

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Solution

The fourth proportional to 393,506.61, 541,726.00 and 375,429.69 is: 516,840.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,506.61 : 541,726.00 = 375,429.69 : x
  2. Step 2: Convert to fraction form
    393,506.61/541,726.00 = 375,429.69/x
  3. Step 3: Cross multiply
    393,506.61x = 541,726.00 × 375,429.69
  4. Step 4: Simplify right side
    393,506.61x = 203,380,025,337.84
  5. Step 5: Solve for x
    x = 203,380,025,337.84/393,506.61
  6. Step 6: Final answer
    x = 516,840.17

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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.