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Finding the Fourth Proportional to 1,474.26, 2,209.71 and 607.50

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Solution

The fourth proportional to 1,474.26, 2,209.71 and 607.50 is: 910.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,474.26 : 2,209.71 = 607.50 : x
  2. Step 2: Convert to fraction form
    1,474.26/2,209.71 = 607.50/x
  3. Step 3: Cross multiply
    1,474.26x = 2,209.71 × 607.50
  4. Step 4: Simplify right side
    1,474.26x = 1,342,398.83
  5. Step 5: Solve for x
    x = 1,342,398.83/1,474.26
  6. Step 6: Final answer
    x = 910.56

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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.