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Finding the Fourth Proportional to 340,520.16, 469,789.92 and 197,227.92

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Solution

The fourth proportional to 340,520.16, 469,789.92 and 197,227.92 is: 272,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,520.16 : 469,789.92 = 197,227.92 : x
  2. Step 2: Convert to fraction form
    340,520.16/469,789.92 = 197,227.92/x
  3. Step 3: Cross multiply
    340,520.16x = 469,789.92 × 197,227.92
  4. Step 4: Simplify right side
    340,520.16x = 92,655,688,758.57
  5. Step 5: Solve for x
    x = 92,655,688,758.57/340,520.16
  6. Step 6: Final answer
    x = 272,100.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.