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Finding the Fourth Proportional to 605,196.20, 906,239.10 and 446,565.80

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Solution

The fourth proportional to 605,196.20, 906,239.10 and 446,565.80 is: 668,701.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,196.20 : 906,239.10 = 446,565.80 : x
  2. Step 2: Convert to fraction form
    605,196.20/906,239.10 = 446,565.80/x
  3. Step 3: Cross multiply
    605,196.20x = 906,239.10 × 446,565.80
  4. Step 4: Simplify right side
    605,196.20x = 404,695,388,682.78
  5. Step 5: Solve for x
    x = 404,695,388,682.78/605,196.20
  6. Step 6: Final answer
    x = 668,701.14

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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.