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Finding the Fourth Proportional to 659,500.11, 910,207.98 and 417,805.11

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Solution

The fourth proportional to 659,500.11, 910,207.98 and 417,805.11 is: 576,633.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,500.11 : 910,207.98 = 417,805.11 : x
  2. Step 2: Convert to fraction form
    659,500.11/910,207.98 = 417,805.11/x
  3. Step 3: Cross multiply
    659,500.11x = 910,207.98 × 417,805.11
  4. Step 4: Simplify right side
    659,500.11x = 380,289,545,206.78
  5. Step 5: Solve for x
    x = 380,289,545,206.78/659,500.11
  6. Step 6: Final answer
    x = 576,633.03

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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.