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Finding the Fourth Proportional to 548,552.72, 757,023.46 and 306,834.56

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Solution

The fourth proportional to 548,552.72, 757,023.46 and 306,834.56 is: 423,443.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,552.72 : 757,023.46 = 306,834.56 : x
  2. Step 2: Convert to fraction form
    548,552.72/757,023.46 = 306,834.56/x
  3. Step 3: Cross multiply
    548,552.72x = 757,023.46 × 306,834.56
  4. Step 4: Simplify right side
    548,552.72x = 232,280,960,258.78
  5. Step 5: Solve for x
    x = 232,280,960,258.78/548,552.72
  6. Step 6: Final answer
    x = 423,443.27

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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.