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Finding the Fourth Proportional to 1,134.36, 1,702.14 and 586.40

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Solution

The fourth proportional to 1,134.36, 1,702.14 and 586.40 is: 879.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.36 : 1,702.14 = 586.40 : x
  2. Step 2: Convert to fraction form
    1,134.36/1,702.14 = 586.40/x
  3. Step 3: Cross multiply
    1,134.36x = 1,702.14 × 586.40
  4. Step 4: Simplify right side
    1,134.36x = 998,134.90
  5. Step 5: Solve for x
    x = 998,134.90/1,134.36
  6. Step 6: Final answer
    x = 879.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.