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Finding the Fourth Proportional to 1,134.96, 1,702.58 and 404.60

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Solution

The fourth proportional to 1,134.96, 1,702.58 and 404.60 is: 606.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,134.96 : 1,702.58 = 404.60 : x
  2. Step 2: Convert to fraction form
    1,134.96/1,702.58 = 404.60/x
  3. Step 3: Cross multiply
    1,134.96x = 1,702.58 × 404.60
  4. Step 4: Simplify right side
    1,134.96x = 688,863.87
  5. Step 5: Solve for x
    x = 688,863.87/1,134.96
  6. Step 6: Final answer
    x = 606.95

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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.