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Finding the Fourth Proportional to 473,338.71, 653,206.86 and 279,816.17

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Solution

The fourth proportional to 473,338.71, 653,206.86 and 279,816.17 is: 386,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,338.71 : 653,206.86 = 279,816.17 : x
  2. Step 2: Convert to fraction form
    473,338.71/653,206.86 = 279,816.17/x
  3. Step 3: Cross multiply
    473,338.71x = 653,206.86 × 279,816.17
  4. Step 4: Simplify right side
    473,338.71x = 182,777,841,404.20
  5. Step 5: Solve for x
    x = 182,777,841,404.20/473,338.71
  6. Step 6: Final answer
    x = 386,145.98

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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.