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Finding the Fourth Proportional to 3,338.57, 4,607.15 and 2,078.99

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Solution

The fourth proportional to 3,338.57, 4,607.15 and 2,078.99 is: 2,868.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,338.57 : 4,607.15 = 2,078.99 : x
  2. Step 2: Convert to fraction form
    3,338.57/4,607.15 = 2,078.99/x
  3. Step 3: Cross multiply
    3,338.57x = 4,607.15 × 2,078.99
  4. Step 4: Simplify right side
    3,338.57x = 9,578,195.74
  5. Step 5: Solve for x
    x = 9,578,195.74/3,338.57
  6. Step 6: Final answer
    x = 2,868.96

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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.