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Finding the Fourth Proportional to 2,432.78, 3,648.76 and 701

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Solution

The fourth proportional to 2,432.78, 3,648.76 and 701 is: 1,051.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,432.78 : 3,648.76 = 701 : x
  2. Step 2: Convert to fraction form
    2,432.78/3,648.76 = 701/x
  3. Step 3: Cross multiply
    2,432.78x = 3,648.76 × 701
  4. Step 4: Simplify right side
    2,432.78x = 2,557,780.76
  5. Step 5: Solve for x
    x = 2,557,780.76/2,432.78
  6. Step 6: Final answer
    x = 1,051.38

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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.