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Finding the Fourth Proportional to 1,046.19, 1,444.21 and 692.33

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Solution

The fourth proportional to 1,046.19, 1,444.21 and 692.33 is: 955.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,046.19 : 1,444.21 = 692.33 : x
  2. Step 2: Convert to fraction form
    1,046.19/1,444.21 = 692.33/x
  3. Step 3: Cross multiply
    1,046.19x = 1,444.21 × 692.33
  4. Step 4: Simplify right side
    1,046.19x = 999,869.91
  5. Step 5: Solve for x
    x = 999,869.91/1,046.19
  6. Step 6: Final answer
    x = 955.72

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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.