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Finding the Fourth Proportional to 3,191.92, 4,404.76 and 1,775.53

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Solution

The fourth proportional to 3,191.92, 4,404.76 and 1,775.53 is: 2,450.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.92 : 4,404.76 = 1,775.53 : x
  2. Step 2: Convert to fraction form
    3,191.92/4,404.76 = 1,775.53/x
  3. Step 3: Cross multiply
    3,191.92x = 4,404.76 × 1,775.53
  4. Step 4: Simplify right side
    3,191.92x = 7,820,752.62
  5. Step 5: Solve for x
    x = 7,820,752.62/3,191.92
  6. Step 6: Final answer
    x = 2,450.18

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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.