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Finding the Fourth Proportional to 404,297.28, 606,475.08 and 123,778.08

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Solution

The fourth proportional to 404,297.28, 606,475.08 and 123,778.08 is: 185,676.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,297.28 : 606,475.08 = 123,778.08 : x
  2. Step 2: Convert to fraction form
    404,297.28/606,475.08 = 123,778.08/x
  3. Step 3: Cross multiply
    404,297.28x = 606,475.08 × 123,778.08
  4. Step 4: Simplify right side
    404,297.28x = 75,068,320,970.25
  5. Step 5: Solve for x
    x = 75,068,320,970.25/404,297.28
  6. Step 6: Final answer
    x = 185,676.05

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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.