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Finding the Fourth Proportional to 1,084.36, 1,496.41 and 587

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Solution

The fourth proportional to 1,084.36, 1,496.41 and 587 is: 810.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,084.36 : 1,496.41 = 587 : x
  2. Step 2: Convert to fraction form
    1,084.36/1,496.41 = 587/x
  3. Step 3: Cross multiply
    1,084.36x = 1,496.41 × 587
  4. Step 4: Simplify right side
    1,084.36x = 878,392.67
  5. Step 5: Solve for x
    x = 878,392.67/1,084.36
  6. Step 6: Final answer
    x = 810.06

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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.