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Finding the Fourth Proportional to 1,374.26, 2,061.32 and 508.50

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Solution

The fourth proportional to 1,374.26, 2,061.32 and 508.50 is: 762.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,374.26 : 2,061.32 = 508.50 : x
  2. Step 2: Convert to fraction form
    1,374.26/2,061.32 = 508.50/x
  3. Step 3: Cross multiply
    1,374.26x = 2,061.32 × 508.50
  4. Step 4: Simplify right side
    1,374.26x = 1,048,178.68
  5. Step 5: Solve for x
    x = 1,048,178.68/1,374.26
  6. Step 6: Final answer
    x = 762.73

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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.