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Finding the Fourth Proportional to 2,400.96, 3,311.10 and 1,655.76

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Solution

The fourth proportional to 2,400.96, 3,311.10 and 1,655.76 is: 2,283.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,400.96 : 3,311.10 = 1,655.76 : x
  2. Step 2: Convert to fraction form
    2,400.96/3,311.10 = 1,655.76/x
  3. Step 3: Cross multiply
    2,400.96x = 3,311.10 × 1,655.76
  4. Step 4: Simplify right side
    2,400.96x = 5,482,386.94
  5. Step 5: Solve for x
    x = 5,482,386.94/2,400.96
  6. Step 6: Final answer
    x = 2,283.41

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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.