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Finding the Fourth Proportional to 354,937.87, 530,789.68 and 265,043.71

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Solution

The fourth proportional to 354,937.87, 530,789.68 and 265,043.71 is: 396,358.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,937.87 : 530,789.68 = 265,043.71 : x
  2. Step 2: Convert to fraction form
    354,937.87/530,789.68 = 265,043.71/x
  3. Step 3: Cross multiply
    354,937.87x = 530,789.68 × 265,043.71
  4. Step 4: Simplify right side
    354,937.87x = 140,682,466,016.91
  5. Step 5: Solve for x
    x = 140,682,466,016.91/354,937.87
  6. Step 6: Final answer
    x = 396,358.00

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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.