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Finding the Fourth Proportional to 447,538.74, 617,656.05 and 251,337.46

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Solution

The fourth proportional to 447,538.74, 617,656.05 and 251,337.46 is: 346,875.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,538.74 : 617,656.05 = 251,337.46 : x
  2. Step 2: Convert to fraction form
    447,538.74/617,656.05 = 251,337.46/x
  3. Step 3: Cross multiply
    447,538.74x = 617,656.05 × 251,337.46
  4. Step 4: Simplify right side
    447,538.74x = 155,240,105,004.98
  5. Step 5: Solve for x
    x = 155,240,105,004.98/447,538.74
  6. Step 6: Final answer
    x = 346,875.23

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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.