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Finding the Fourth Proportional to 1,067.04, 1,472.76 and 624.96

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Solution

The fourth proportional to 1,067.04, 1,472.76 and 624.96 is: 862.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,067.04 : 1,472.76 = 624.96 : x
  2. Step 2: Convert to fraction form
    1,067.04/1,472.76 = 624.96/x
  3. Step 3: Cross multiply
    1,067.04x = 1,472.76 × 624.96
  4. Step 4: Simplify right side
    1,067.04x = 920,416.09
  5. Step 5: Solve for x
    x = 920,416.09/1,067.04
  6. Step 6: Final answer
    x = 862.59

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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.