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Finding the Fourth Proportional to 517,970.17, 776,881.44 and 162,974.96

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Solution

The fourth proportional to 517,970.17, 776,881.44 and 162,974.96 is: 244,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,970.17 : 776,881.44 = 162,974.96 : x
  2. Step 2: Convert to fraction form
    517,970.17/776,881.44 = 162,974.96/x
  3. Step 3: Cross multiply
    517,970.17x = 776,881.44 × 162,974.96
  4. Step 4: Simplify right side
    517,970.17x = 126,612,223,550.95
  5. Step 5: Solve for x
    x = 126,612,223,550.95/517,970.17
  6. Step 6: Final answer
    x = 244,439.22

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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.