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Finding the Fourth Proportional to 1,791.65, 2,472.49 and 994.99

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Solution

The fourth proportional to 1,791.65, 2,472.49 and 994.99 is: 1,373.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791.65 : 2,472.49 = 994.99 : x
  2. Step 2: Convert to fraction form
    1,791.65/2,472.49 = 994.99/x
  3. Step 3: Cross multiply
    1,791.65x = 2,472.49 × 994.99
  4. Step 4: Simplify right side
    1,791.65x = 2,460,085.49
  5. Step 5: Solve for x
    x = 2,460,085.49/1,791.65
  6. Step 6: Final answer
    x = 1,373.08

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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.