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Finding the Fourth Proportional to 2,263.18, 3,392.67 and 877.42

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Solution

The fourth proportional to 2,263.18, 3,392.67 and 877.42 is: 1,315.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,263.18 : 3,392.67 = 877.42 : x
  2. Step 2: Convert to fraction form
    2,263.18/3,392.67 = 877.42/x
  3. Step 3: Cross multiply
    2,263.18x = 3,392.67 × 877.42
  4. Step 4: Simplify right side
    2,263.18x = 2,976,792.12
  5. Step 5: Solve for x
    x = 2,976,792.12/2,263.18
  6. Step 6: Final answer
    x = 1,315.31

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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.