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Finding the Fourth Proportional to 1,160.72, 1,740.40 and 467.36

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Solution

The fourth proportional to 1,160.72, 1,740.40 and 467.36 is: 700.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,160.72 : 1,740.40 = 467.36 : x
  2. Step 2: Convert to fraction form
    1,160.72/1,740.40 = 467.36/x
  3. Step 3: Cross multiply
    1,160.72x = 1,740.40 × 467.36
  4. Step 4: Simplify right side
    1,160.72x = 813,393.34
  5. Step 5: Solve for x
    x = 813,393.34/1,160.72
  6. Step 6: Final answer
    x = 700.77

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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.