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Finding the Fourth Proportional to 3,473.30, 5,209.95 and 876.23

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Solution

The fourth proportional to 3,473.30, 5,209.95 and 876.23 is: 1,314.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,473.30 : 5,209.95 = 876.23 : x
  2. Step 2: Convert to fraction form
    3,473.30/5,209.95 = 876.23/x
  3. Step 3: Cross multiply
    3,473.30x = 5,209.95 × 876.23
  4. Step 4: Simplify right side
    3,473.30x = 4,565,140.57
  5. Step 5: Solve for x
    x = 4,565,140.57/3,473.30
  6. Step 6: Final answer
    x = 1,314.35

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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.