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Finding the Fourth Proportional to 1,574.41, 2,361.20 and 708.52

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Solution

The fourth proportional to 1,574.41, 2,361.20 and 708.52 is: 1,062.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,574.41 : 2,361.20 = 708.52 : x
  2. Step 2: Convert to fraction form
    1,574.41/2,361.20 = 708.52/x
  3. Step 3: Cross multiply
    1,574.41x = 2,361.20 × 708.52
  4. Step 4: Simplify right side
    1,574.41x = 1,672,957.42
  5. Step 5: Solve for x
    x = 1,672,957.42/1,574.41
  6. Step 6: Final answer
    x = 1,062.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.