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Finding the Fourth Proportional to 1,140.93, 1,702.44 and 1,071.27

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Solution

The fourth proportional to 1,140.93, 1,702.44 and 1,071.27 is: 1,598.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140.93 : 1,702.44 = 1,071.27 : x
  2. Step 2: Convert to fraction form
    1,140.93/1,702.44 = 1,071.27/x
  3. Step 3: Cross multiply
    1,140.93x = 1,702.44 × 1,071.27
  4. Step 4: Simplify right side
    1,140.93x = 1,823,772.90
  5. Step 5: Solve for x
    x = 1,823,772.90/1,140.93
  6. Step 6: Final answer
    x = 1,598.50

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.