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Finding the Fourth Proportional to 366,947.80, 550,421.70 and 240,648.55

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Solution

The fourth proportional to 366,947.80, 550,421.70 and 240,648.55 is: 360,972.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,947.80 : 550,421.70 = 240,648.55 : x
  2. Step 2: Convert to fraction form
    366,947.80/550,421.70 = 240,648.55/x
  3. Step 3: Cross multiply
    366,947.80x = 550,421.70 × 240,648.55
  4. Step 4: Simplify right side
    366,947.80x = 132,458,183,993.54
  5. Step 5: Solve for x
    x = 132,458,183,993.54/366,947.80
  6. Step 6: Final answer
    x = 360,972.83

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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.