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Finding the Fourth Proportional to 698.32, 961.49 and 593.19

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Solution

The fourth proportional to 698.32, 961.49 and 593.19 is: 816.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    698.32 : 961.49 = 593.19 : x
  2. Step 2: Convert to fraction form
    698.32/961.49 = 593.19/x
  3. Step 3: Cross multiply
    698.32x = 961.49 × 593.19
  4. Step 4: Simplify right side
    698.32x = 570,346.25
  5. Step 5: Solve for x
    x = 570,346.25/698.32
  6. Step 6: Final answer
    x = 816.74

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.