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Finding the Fourth Proportional to 1,452.67, 2,004.96 and 823.19

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Solution

The fourth proportional to 1,452.67, 2,004.96 and 823.19 is: 1,136.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,452.67 : 2,004.96 = 823.19 : x
  2. Step 2: Convert to fraction form
    1,452.67/2,004.96 = 823.19/x
  3. Step 3: Cross multiply
    1,452.67x = 2,004.96 × 823.19
  4. Step 4: Simplify right side
    1,452.67x = 1,650,463.02
  5. Step 5: Solve for x
    x = 1,650,463.02/1,452.67
  6. Step 6: Final answer
    x = 1,136.16

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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.