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Finding the Fourth Proportional to 2,334.56, 3,502.40 and 691.05

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Solution

The fourth proportional to 2,334.56, 3,502.40 and 691.05 is: 1,036.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,334.56 : 3,502.40 = 691.05 : x
  2. Step 2: Convert to fraction form
    2,334.56/3,502.40 = 691.05/x
  3. Step 3: Cross multiply
    2,334.56x = 3,502.40 × 691.05
  4. Step 4: Simplify right side
    2,334.56x = 2,420,330.06
  5. Step 5: Solve for x
    x = 2,420,330.06/2,334.56
  6. Step 6: Final answer
    x = 1,036.74

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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.