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Finding the Fourth Proportional to 1,366.67, 2,048.63 and 587.18

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Solution

The fourth proportional to 1,366.67, 2,048.63 and 587.18 is: 880.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,366.67 : 2,048.63 = 587.18 : x
  2. Step 2: Convert to fraction form
    1,366.67/2,048.63 = 587.18/x
  3. Step 3: Cross multiply
    1,366.67x = 2,048.63 × 587.18
  4. Step 4: Simplify right side
    1,366.67x = 1,202,904.32
  5. Step 5: Solve for x
    x = 1,202,904.32/1,366.67
  6. Step 6: Final answer
    x = 880.17

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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.