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Finding the Fourth Proportional to 517,689.20, 776,534.16 and 162,734.24

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Solution

The fourth proportional to 517,689.20, 776,534.16 and 162,734.24 is: 244,101.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,689.20 : 776,534.16 = 162,734.24 : x
  2. Step 2: Convert to fraction form
    517,689.20/776,534.16 = 162,734.24/x
  3. Step 3: Cross multiply
    517,689.20x = 776,534.16 × 162,734.24
  4. Step 4: Simplify right side
    517,689.20x = 126,368,696,361.64
  5. Step 5: Solve for x
    x = 126,368,696,361.64/517,689.20
  6. Step 6: Final answer
    x = 244,101.47

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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.