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Finding the Fourth Proportional to 447,813.17, 617,882.10 and 375,508.52

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Solution

The fourth proportional to 447,813.17, 617,882.10 and 375,508.52 is: 518,117.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,813.17 : 617,882.10 = 375,508.52 : x
  2. Step 2: Convert to fraction form
    447,813.17/617,882.10 = 375,508.52/x
  3. Step 3: Cross multiply
    447,813.17x = 617,882.10 × 375,508.52
  4. Step 4: Simplify right side
    447,813.17x = 232,019,992,905.49
  5. Step 5: Solve for x
    x = 232,019,992,905.49/447,813.17
  6. Step 6: Final answer
    x = 518,117.84

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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.