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Finding the Fourth Proportional to 2,363.16, 3,261.16 and 1,315.22

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Solution

The fourth proportional to 2,363.16, 3,261.16 and 1,315.22 is: 1,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,363.16 : 3,261.16 = 1,315.22 : x
  2. Step 2: Convert to fraction form
    2,363.16/3,261.16 = 1,315.22/x
  3. Step 3: Cross multiply
    2,363.16x = 3,261.16 × 1,315.22
  4. Step 4: Simplify right side
    2,363.16x = 4,289,142.86
  5. Step 5: Solve for x
    x = 4,289,142.86/2,363.16
  6. Step 6: Final answer
    x = 1,815.00

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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.