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Finding the Fourth Proportional to 1,060.72, 1,464.62 and 730.24

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Solution

The fourth proportional to 1,060.72, 1,464.62 and 730.24 is: 1,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.72 : 1,464.62 = 730.24 : x
  2. Step 2: Convert to fraction form
    1,060.72/1,464.62 = 730.24/x
  3. Step 3: Cross multiply
    1,060.72x = 1,464.62 × 730.24
  4. Step 4: Simplify right side
    1,060.72x = 1,069,524.11
  5. Step 5: Solve for x
    x = 1,069,524.11/1,060.72
  6. Step 6: Final answer
    x = 1,008.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.