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Finding the Fourth Proportional to 692.42, 1,034.26 and 583.08

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Solution

The fourth proportional to 692.42, 1,034.26 and 583.08 is: 870.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    692.42 : 1,034.26 = 583.08 : x
  2. Step 2: Convert to fraction form
    692.42/1,034.26 = 583.08/x
  3. Step 3: Cross multiply
    692.42x = 1,034.26 × 583.08
  4. Step 4: Simplify right side
    692.42x = 603,056.32
  5. Step 5: Solve for x
    x = 603,056.32/692.42
  6. Step 6: Final answer
    x = 870.94

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.