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Finding the Fourth Proportional to 742.16, 1,113.38 and 467.93

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Solution

The fourth proportional to 742.16, 1,113.38 and 467.93 is: 701.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    742.16 : 1,113.38 = 467.93 : x
  2. Step 2: Convert to fraction form
    742.16/1,113.38 = 467.93/x
  3. Step 3: Cross multiply
    742.16x = 1,113.38 × 467.93
  4. Step 4: Simplify right side
    742.16x = 520,976.00
  5. Step 5: Solve for x
    x = 520,976.00/742.16
  6. Step 6: Final answer
    x = 701.98

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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.