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Finding the Fourth Proportional to 1,232.46, 1,700.93 and 708.48

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Solution

The fourth proportional to 1,232.46, 1,700.93 and 708.48 is: 977.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.46 : 1,700.93 = 708.48 : x
  2. Step 2: Convert to fraction form
    1,232.46/1,700.93 = 708.48/x
  3. Step 3: Cross multiply
    1,232.46x = 1,700.93 × 708.48
  4. Step 4: Simplify right side
    1,232.46x = 1,205,076.66
  5. Step 5: Solve for x
    x = 1,205,076.66/1,232.46
  6. Step 6: Final answer
    x = 977.78

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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.