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Finding the Fourth Proportional to 659,697.14, 910,375.91 and 373,217.22

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Solution

The fourth proportional to 659,697.14, 910,375.91 and 373,217.22 is: 515,036.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,697.14 : 910,375.91 = 373,217.22 : x
  2. Step 2: Convert to fraction form
    659,697.14/910,375.91 = 373,217.22/x
  3. Step 3: Cross multiply
    659,697.14x = 910,375.91 × 373,217.22
  4. Step 4: Simplify right side
    659,697.14x = 339,767,964,419.08
  5. Step 5: Solve for x
    x = 339,767,964,419.08/659,697.14
  6. Step 6: Final answer
    x = 515,036.29

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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.