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Finding the Fourth Proportional to 1,244.40, 1,718.52 and 1,025.52

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Solution

The fourth proportional to 1,244.40, 1,718.52 and 1,025.52 is: 1,416.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244.40 : 1,718.52 = 1,025.52 : x
  2. Step 2: Convert to fraction form
    1,244.40/1,718.52 = 1,025.52/x
  3. Step 3: Cross multiply
    1,244.40x = 1,718.52 × 1,025.52
  4. Step 4: Simplify right side
    1,244.40x = 1,762,376.63
  5. Step 5: Solve for x
    x = 1,762,376.63/1,244.40
  6. Step 6: Final answer
    x = 1,416.25

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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.