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Finding the Fourth Proportional to 342,340.56, 472,399.56 and 197,107.56

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Solution

The fourth proportional to 342,340.56, 472,399.56 and 197,107.56 is: 271,990.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,340.56 : 472,399.56 = 197,107.56 : x
  2. Step 2: Convert to fraction form
    342,340.56/472,399.56 = 197,107.56/x
  3. Step 3: Cross multiply
    342,340.56x = 472,399.56 × 197,107.56
  4. Step 4: Simplify right side
    342,340.56x = 93,113,524,616.67
  5. Step 5: Solve for x
    x = 93,113,524,616.67/342,340.56
  6. Step 6: Final answer
    x = 271,990.92

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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.