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Finding the Fourth Proportional to 1,116.18, 1,672.92 and 466.16

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Solution

The fourth proportional to 1,116.18, 1,672.92 and 466.16 is: 698.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,116.18 : 1,672.92 = 466.16 : x
  2. Step 2: Convert to fraction form
    1,116.18/1,672.92 = 466.16/x
  3. Step 3: Cross multiply
    1,116.18x = 1,672.92 × 466.16
  4. Step 4: Simplify right side
    1,116.18x = 779,840.02
  5. Step 5: Solve for x
    x = 779,840.02/1,116.18
  6. Step 6: Final answer
    x = 698.67

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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.