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Finding the Fourth Proportional to 867.06, 1,196.58 and 474.06

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Solution

The fourth proportional to 867.06, 1,196.58 and 474.06 is: 654.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    867.06 : 1,196.58 = 474.06 : x
  2. Step 2: Convert to fraction form
    867.06/1,196.58 = 474.06/x
  3. Step 3: Cross multiply
    867.06x = 1,196.58 × 474.06
  4. Step 4: Simplify right side
    867.06x = 567,250.71
  5. Step 5: Solve for x
    x = 567,250.71/867.06
  6. Step 6: Final answer
    x = 654.22

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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.