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Finding the Fourth Proportional to 1,045.59, 1,444.82 and 696.75

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Solution

The fourth proportional to 1,045.59, 1,444.82 and 696.75 is: 962.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045.59 : 1,444.82 = 696.75 : x
  2. Step 2: Convert to fraction form
    1,045.59/1,444.82 = 696.75/x
  3. Step 3: Cross multiply
    1,045.59x = 1,444.82 × 696.75
  4. Step 4: Simplify right side
    1,045.59x = 1,006,674.85
  5. Step 5: Solve for x
    x = 1,006,674.85/1,045.59
  6. Step 6: Final answer
    x = 962.78

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.