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Finding the Fourth Proportional to 555,194.25, 766,168.47 and 300,545.64

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Solution

The fourth proportional to 555,194.25, 766,168.47 and 300,545.64 is: 414,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,194.25 : 766,168.47 = 300,545.64 : x
  2. Step 2: Convert to fraction form
    555,194.25/766,168.47 = 300,545.64/x
  3. Step 3: Cross multiply
    555,194.25x = 766,168.47 × 300,545.64
  4. Step 4: Simplify right side
    555,194.25x = 230,268,593,163.97
  5. Step 5: Solve for x
    x = 230,268,593,163.97/555,194.25
  6. Step 6: Final answer
    x = 414,753.20

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1.5x scale

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.