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Finding the Fourth Proportional to 456.67, 630.19 and 260.17

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Solution

The fourth proportional to 456.67, 630.19 and 260.17 is: 359.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    456.67 : 630.19 = 260.17 : x
  2. Step 2: Convert to fraction form
    456.67/630.19 = 260.17/x
  3. Step 3: Cross multiply
    456.67x = 630.19 × 260.17
  4. Step 4: Simplify right side
    456.67x = 163,952.08
  5. Step 5: Solve for x
    x = 163,952.08/456.67
  6. Step 6: Final answer
    x = 359.02

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.