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Finding the Fourth Proportional to 1,373.91, 1,895.86 and 814.29

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Solution

The fourth proportional to 1,373.91, 1,895.86 and 814.29 is: 1,123.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,373.91 : 1,895.86 = 814.29 : x
  2. Step 2: Convert to fraction form
    1,373.91/1,895.86 = 814.29/x
  3. Step 3: Cross multiply
    1,373.91x = 1,895.86 × 814.29
  4. Step 4: Simplify right side
    1,373.91x = 1,543,779.84
  5. Step 5: Solve for x
    x = 1,543,779.84/1,373.91
  6. Step 6: Final answer
    x = 1,123.64

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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.