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Finding the Fourth Proportional to 517,844.80, 776,767.20 and 162,967.60

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Solution

The fourth proportional to 517,844.80, 776,767.20 and 162,967.60 is: 244,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,844.80 : 776,767.20 = 162,967.60 : x
  2. Step 2: Convert to fraction form
    517,844.80/776,767.20 = 162,967.60/x
  3. Step 3: Cross multiply
    517,844.80x = 776,767.20 × 162,967.60
  4. Step 4: Simplify right side
    517,844.80x = 126,587,886,342.72
  5. Step 5: Solve for x
    x = 126,587,886,342.72/517,844.80
  6. Step 6: Final answer
    x = 244,451.40

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Similar ratio
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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.