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Finding the Fourth Proportional to 1,750.84, 2,625.45 and 655.18

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Solution

The fourth proportional to 1,750.84, 2,625.45 and 655.18 is: 982.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,750.84 : 2,625.45 = 655.18 : x
  2. Step 2: Convert to fraction form
    1,750.84/2,625.45 = 655.18/x
  3. Step 3: Cross multiply
    1,750.84x = 2,625.45 × 655.18
  4. Step 4: Simplify right side
    1,750.84x = 1,720,142.33
  5. Step 5: Solve for x
    x = 1,720,142.33/1,750.84
  6. Step 6: Final answer
    x = 982.47

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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.