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Finding the Fourth Proportional to 1,343.95, 2,016.10 and 466.21

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Solution

The fourth proportional to 1,343.95, 2,016.10 and 466.21 is: 699.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.95 : 2,016.10 = 466.21 : x
  2. Step 2: Convert to fraction form
    1,343.95/2,016.10 = 466.21/x
  3. Step 3: Cross multiply
    1,343.95x = 2,016.10 × 466.21
  4. Step 4: Simplify right side
    1,343.95x = 939,925.98
  5. Step 5: Solve for x
    x = 939,925.98/1,343.95
  6. Step 6: Final answer
    x = 699.38

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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.