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Finding the Fourth Proportional to 1,050.76, 1,449.54 and 701.32

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Solution

The fourth proportional to 1,050.76, 1,449.54 and 701.32 is: 967.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050.76 : 1,449.54 = 701.32 : x
  2. Step 2: Convert to fraction form
    1,050.76/1,449.54 = 701.32/x
  3. Step 3: Cross multiply
    1,050.76x = 1,449.54 × 701.32
  4. Step 4: Simplify right side
    1,050.76x = 1,016,591.39
  5. Step 5: Solve for x
    x = 1,016,591.39/1,050.76
  6. Step 6: Final answer
    x = 967.48

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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.