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Finding the Fourth Proportional to 1,192.36, 1,645.23 and 750.01

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Solution

The fourth proportional to 1,192.36, 1,645.23 and 750.01 is: 1,034.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.36 : 1,645.23 = 750.01 : x
  2. Step 2: Convert to fraction form
    1,192.36/1,645.23 = 750.01/x
  3. Step 3: Cross multiply
    1,192.36x = 1,645.23 × 750.01
  4. Step 4: Simplify right side
    1,192.36x = 1,233,938.95
  5. Step 5: Solve for x
    x = 1,233,938.95/1,192.36
  6. Step 6: Final answer
    x = 1,034.87

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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.