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Finding the Fourth Proportional to 3,394.33, 5,091.50 and 929.17

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Solution

The fourth proportional to 3,394.33, 5,091.50 and 929.17 is: 1,393.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,394.33 : 5,091.50 = 929.17 : x
  2. Step 2: Convert to fraction form
    3,394.33/5,091.50 = 929.17/x
  3. Step 3: Cross multiply
    3,394.33x = 5,091.50 × 929.17
  4. Step 4: Simplify right side
    3,394.33x = 4,730,875.13
  5. Step 5: Solve for x
    x = 4,730,875.13/3,394.33
  6. Step 6: Final answer
    x = 1,393.76

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1.5x scale

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.