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Finding the Fourth Proportional to 1,435.96, 2,152.52 and 461.44

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Solution

The fourth proportional to 1,435.96, 2,152.52 and 461.44 is: 691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435.96 : 2,152.52 = 461.44 : x
  2. Step 2: Convert to fraction form
    1,435.96/2,152.52 = 461.44/x
  3. Step 3: Cross multiply
    1,435.96x = 2,152.52 × 461.44
  4. Step 4: Simplify right side
    1,435.96x = 993,258.83
  5. Step 5: Solve for x
    x = 993,258.83/1,435.96
  6. Step 6: Final answer
    x = 691.70

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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.