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Finding the Fourth Proportional to 517,072.01, 775,608.24 and 162,113.70

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Solution

The fourth proportional to 517,072.01, 775,608.24 and 162,113.70 is: 243,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,072.01 : 775,608.24 = 162,113.70 : x
  2. Step 2: Convert to fraction form
    517,072.01/775,608.24 = 162,113.70/x
  3. Step 3: Cross multiply
    517,072.01x = 775,608.24 × 162,113.70
  4. Step 4: Simplify right side
    517,072.01x = 125,736,721,536.89
  5. Step 5: Solve for x
    x = 125,736,721,536.89/517,072.01
  6. Step 6: Final answer
    x = 243,170.62

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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.