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Finding the Fourth Proportional to 605,119.91, 907,778.38 and 178,698.87

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Solution

The fourth proportional to 605,119.91, 907,778.38 and 178,698.87 is: 268,077.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,119.91 : 907,778.38 = 178,698.87 : x
  2. Step 2: Convert to fraction form
    605,119.91/907,778.38 = 178,698.87/x
  3. Step 3: Cross multiply
    605,119.91x = 907,778.38 × 178,698.87
  4. Step 4: Simplify right side
    605,119.91x = 162,218,969,456.04
  5. Step 5: Solve for x
    x = 162,218,969,456.04/605,119.91
  6. Step 6: Final answer
    x = 268,077.39

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1.5x scale

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.