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Finding the Fourth Proportional to 652,700.12, 978,810.97 and 226,125.77

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Solution

The fourth proportional to 652,700.12, 978,810.97 and 226,125.77 is: 339,105.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,700.12 : 978,810.97 = 226,125.77 : x
  2. Step 2: Convert to fraction form
    652,700.12/978,810.97 = 226,125.77/x
  3. Step 3: Cross multiply
    652,700.12x = 978,810.97 × 226,125.77
  4. Step 4: Simplify right side
    652,700.12x = 221,334,384,275.70
  5. Step 5: Solve for x
    x = 221,334,384,275.70/652,700.12
  6. Step 6: Final answer
    x = 339,105.78

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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.