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Finding the Fourth Proportional to 932.48, 1,396.68 and 606.45

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Solution

The fourth proportional to 932.48, 1,396.68 and 606.45 is: 908.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    932.48 : 1,396.68 = 606.45 : x
  2. Step 2: Convert to fraction form
    932.48/1,396.68 = 606.45/x
  3. Step 3: Cross multiply
    932.48x = 1,396.68 × 606.45
  4. Step 4: Simplify right side
    932.48x = 847,016.59
  5. Step 5: Solve for x
    x = 847,016.59/932.48
  6. Step 6: Final answer
    x = 908.35

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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.