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Finding the Fourth Proportional to 1,148.76, 1,723.62 and 465.24

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Solution

The fourth proportional to 1,148.76, 1,723.62 and 465.24 is: 698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,148.76 : 1,723.62 = 465.24 : x
  2. Step 2: Convert to fraction form
    1,148.76/1,723.62 = 465.24/x
  3. Step 3: Cross multiply
    1,148.76x = 1,723.62 × 465.24
  4. Step 4: Simplify right side
    1,148.76x = 801,896.97
  5. Step 5: Solve for x
    x = 801,896.97/1,148.76
  6. Step 6: Final answer
    x = 698.05

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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.