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Finding the Fourth Proportional to 2,373.82, 3,560.70 and 813.07

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Solution

The fourth proportional to 2,373.82, 3,560.70 and 813.07 is: 1,219.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,373.82 : 3,560.70 = 813.07 : x
  2. Step 2: Convert to fraction form
    2,373.82/3,560.70 = 813.07/x
  3. Step 3: Cross multiply
    2,373.82x = 3,560.70 × 813.07
  4. Step 4: Simplify right side
    2,373.82x = 2,895,098.35
  5. Step 5: Solve for x
    x = 2,895,098.35/2,373.82
  6. Step 6: Final answer
    x = 1,219.59

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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.