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Finding the Fourth Proportional to 517,431.43, 776,276.34 and 180,476.92

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Solution

The fourth proportional to 517,431.43, 776,276.34 and 180,476.92 is: 270,760.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,431.43 : 776,276.34 = 180,476.92 : x
  2. Step 2: Convert to fraction form
    517,431.43/776,276.34 = 180,476.92/x
  3. Step 3: Cross multiply
    517,431.43x = 776,276.34 × 180,476.92
  4. Step 4: Simplify right side
    517,431.43x = 140,099,962,912.07
  5. Step 5: Solve for x
    x = 140,099,962,912.07/517,431.43
  6. Step 6: Final answer
    x = 270,760.44

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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.