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Finding the Fourth Proportional to 1,374, 2,061.32 and 462

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Solution

The fourth proportional to 1,374, 2,061.32 and 462 is: 693.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374 : 2,061.32 = 462 : x
  2. Step 2: Convert to fraction form
    1,374/2,061.32 = 462/x
  3. Step 3: Cross multiply
    1,374x = 2,061.32 × 462
  4. Step 4: Simplify right side
    1,374x = 952,329.84
  5. Step 5: Solve for x
    x = 952,329.84/1,374
  6. Step 6: Final answer
    x = 693.11

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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.