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Finding the Fourth Proportional to 1,732.70, 2,598.42 and 692.39

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Solution

The fourth proportional to 1,732.70, 2,598.42 and 692.39 is: 1,038.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,732.70 : 2,598.42 = 692.39 : x
  2. Step 2: Convert to fraction form
    1,732.70/2,598.42 = 692.39/x
  3. Step 3: Cross multiply
    1,732.70x = 2,598.42 × 692.39
  4. Step 4: Simplify right side
    1,732.70x = 1,799,120.02
  5. Step 5: Solve for x
    x = 1,799,120.02/1,732.70
  6. Step 6: Final answer
    x = 1,038.33

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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.