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Finding the Fourth Proportional to 1,395.29, 1,925.98 and 806.02

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Solution

The fourth proportional to 1,395.29, 1,925.98 and 806.02 is: 1,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.29 : 1,925.98 = 806.02 : x
  2. Step 2: Convert to fraction form
    1,395.29/1,925.98 = 806.02/x
  3. Step 3: Cross multiply
    1,395.29x = 1,925.98 × 806.02
  4. Step 4: Simplify right side
    1,395.29x = 1,552,371.57
  5. Step 5: Solve for x
    x = 1,552,371.57/1,395.29
  6. Step 6: Final answer
    x = 1,112.58

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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.