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Finding the Fourth Proportional to 1,444.76, 2,167.52 and 714.68

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Solution

The fourth proportional to 1,444.76, 2,167.52 and 714.68 is: 1,072.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,444.76 : 2,167.52 = 714.68 : x
  2. Step 2: Convert to fraction form
    1,444.76/2,167.52 = 714.68/x
  3. Step 3: Cross multiply
    1,444.76x = 2,167.52 × 714.68
  4. Step 4: Simplify right side
    1,444.76x = 1,549,083.19
  5. Step 5: Solve for x
    x = 1,549,083.19/1,444.76
  6. Step 6: Final answer
    x = 1,072.21

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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.