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Finding the Fourth Proportional to 1,157.88, 1,597.54 and 692.04

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Solution

The fourth proportional to 1,157.88, 1,597.54 and 692.04 is: 954.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157.88 : 1,597.54 = 692.04 : x
  2. Step 2: Convert to fraction form
    1,157.88/1,597.54 = 692.04/x
  3. Step 3: Cross multiply
    1,157.88x = 1,597.54 × 692.04
  4. Step 4: Simplify right side
    1,157.88x = 1,105,561.58
  5. Step 5: Solve for x
    x = 1,105,561.58/1,157.88
  6. Step 6: Final answer
    x = 954.82

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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.