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Finding the Fourth Proportional to 704, 1,055.93 and 217

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Solution

The fourth proportional to 704, 1,055.93 and 217 is: 325.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    704 : 1,055.93 = 217 : x
  2. Step 2: Convert to fraction form
    704/1,055.93 = 217/x
  3. Step 3: Cross multiply
    704x = 1,055.93 × 217
  4. Step 4: Simplify right side
    704x = 229,136.81
  5. Step 5: Solve for x
    x = 229,136.81/704
  6. Step 6: Final answer
    x = 325.48

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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.