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Finding the Fourth Proportional to 1,422.93, 1,963.30 and 801.93

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Solution

The fourth proportional to 1,422.93, 1,963.30 and 801.93 is: 1,106.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,422.93 : 1,963.30 = 801.93 : x
  2. Step 2: Convert to fraction form
    1,422.93/1,963.30 = 801.93/x
  3. Step 3: Cross multiply
    1,422.93x = 1,963.30 × 801.93
  4. Step 4: Simplify right side
    1,422.93x = 1,574,429.17
  5. Step 5: Solve for x
    x = 1,574,429.17/1,422.93
  6. Step 6: Final answer
    x = 1,106.47

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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.