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Finding the Fourth Proportional to 1,117.03, 1,675.55 and 467.31

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Solution

The fourth proportional to 1,117.03, 1,675.55 and 467.31 is: 700.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117.03 : 1,675.55 = 467.31 : x
  2. Step 2: Convert to fraction form
    1,117.03/1,675.55 = 467.31/x
  3. Step 3: Cross multiply
    1,117.03x = 1,675.55 × 467.31
  4. Step 4: Simplify right side
    1,117.03x = 782,990.56
  5. Step 5: Solve for x
    x = 782,990.56/1,117.03
  6. Step 6: Final answer
    x = 700.96

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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.