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Finding the Fourth Proportional to 517,969.79, 776,880.88 and 162,974.59

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Solution

The fourth proportional to 517,969.79, 776,880.88 and 162,974.59 is: 244,438.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,969.79 : 776,880.88 = 162,974.59 : x
  2. Step 2: Convert to fraction form
    517,969.79/776,880.88 = 162,974.59/x
  3. Step 3: Cross multiply
    517,969.79x = 776,880.88 × 162,974.59
  4. Step 4: Simplify right side
    517,969.79x = 126,611,840,547.20
  5. Step 5: Solve for x
    x = 126,611,840,547.20/517,969.79
  6. Step 6: Final answer
    x = 244,438.66

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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.