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Finding the Fourth Proportional to 360,785.88, 541,365.60 and 261,763.40

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Solution

The fourth proportional to 360,785.88, 541,365.60 and 261,763.40 is: 392,780.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,785.88 : 541,365.60 = 261,763.40 : x
  2. Step 2: Convert to fraction form
    360,785.88/541,365.60 = 261,763.40/x
  3. Step 3: Cross multiply
    360,785.88x = 541,365.60 × 261,763.40
  4. Step 4: Simplify right side
    360,785.88x = 141,709,700,099.04
  5. Step 5: Solve for x
    x = 141,709,700,099.04/360,785.88
  6. Step 6: Final answer
    x = 392,780.62

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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.