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Finding the Fourth Proportional to 1,456.65, 2,010.22 and 793.55

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Solution

The fourth proportional to 1,456.65, 2,010.22 and 793.55 is: 1,095.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,456.65 : 2,010.22 = 793.55 : x
  2. Step 2: Convert to fraction form
    1,456.65/2,010.22 = 793.55/x
  3. Step 3: Cross multiply
    1,456.65x = 2,010.22 × 793.55
  4. Step 4: Simplify right side
    1,456.65x = 1,595,213.12
  5. Step 5: Solve for x
    x = 1,595,213.12/1,456.65
  6. Step 6: Final answer
    x = 1,095.12

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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.