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Finding the Fourth Proportional to 365,560.97, 548,385.19 and 128,854.67

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Solution

The fourth proportional to 365,560.97, 548,385.19 and 128,854.67 is: 193,297.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,560.97 : 548,385.19 = 128,854.67 : x
  2. Step 2: Convert to fraction form
    365,560.97/548,385.19 = 128,854.67/x
  3. Step 3: Cross multiply
    365,560.97x = 548,385.19 × 128,854.67
  4. Step 4: Simplify right side
    365,560.97x = 70,661,989,626.27
  5. Step 5: Solve for x
    x = 70,661,989,626.27/365,560.97
  6. Step 6: Final answer
    x = 193,297.42

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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.