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Finding the Fourth Proportional to 1,160.78, 1,741.25 and 467.45

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Solution

The fourth proportional to 1,160.78, 1,741.25 and 467.45 is: 701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.78 : 1,741.25 = 467.45 : x
  2. Step 2: Convert to fraction form
    1,160.78/1,741.25 = 467.45/x
  3. Step 3: Cross multiply
    1,160.78x = 1,741.25 × 467.45
  4. Step 4: Simplify right side
    1,160.78x = 813,953.47
  5. Step 5: Solve for x
    x = 813,953.47/1,160.78
  6. Step 6: Final answer
    x = 701.21

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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.