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Finding the Fourth Proportional to 548,734.38, 757,282.77 and 307,002.48

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Solution

The fourth proportional to 548,734.38, 757,282.77 and 307,002.48 is: 423,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,734.38 : 757,282.77 = 307,002.48 : x
  2. Step 2: Convert to fraction form
    548,734.38/757,282.77 = 307,002.48/x
  3. Step 3: Cross multiply
    548,734.38x = 757,282.77 × 307,002.48
  4. Step 4: Simplify right side
    548,734.38x = 232,487,688,451.27
  5. Step 5: Solve for x
    x = 232,487,688,451.27/548,734.38
  6. Step 6: Final answer
    x = 423,679.83

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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.