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Finding the Fourth Proportional to 700.92, 1,051.83 and 316.17

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Solution

The fourth proportional to 700.92, 1,051.83 and 316.17 is: 474.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    700.92 : 1,051.83 = 316.17 : x
  2. Step 2: Convert to fraction form
    700.92/1,051.83 = 316.17/x
  3. Step 3: Cross multiply
    700.92x = 1,051.83 × 316.17
  4. Step 4: Simplify right side
    700.92x = 332,557.09
  5. Step 5: Solve for x
    x = 332,557.09/700.92
  6. Step 6: Final answer
    x = 474.46

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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.