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Finding the Fourth Proportional to 1,232.74, 1,700.22 and 901.45

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Solution

The fourth proportional to 1,232.74, 1,700.22 and 901.45 is: 1,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.74 : 1,700.22 = 901.45 : x
  2. Step 2: Convert to fraction form
    1,232.74/1,700.22 = 901.45/x
  3. Step 3: Cross multiply
    1,232.74x = 1,700.22 × 901.45
  4. Step 4: Simplify right side
    1,232.74x = 1,532,663.32
  5. Step 5: Solve for x
    x = 1,532,663.32/1,232.74
  6. Step 6: Final answer
    x = 1,243.30

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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.