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Finding the Fourth Proportional to 1,362.66, 2,043.99 and 336.66

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Solution

The fourth proportional to 1,362.66, 2,043.99 and 336.66 is: 504.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.66 : 2,043.99 = 336.66 : x
  2. Step 2: Convert to fraction form
    1,362.66/2,043.99 = 336.66/x
  3. Step 3: Cross multiply
    1,362.66x = 2,043.99 × 336.66
  4. Step 4: Simplify right side
    1,362.66x = 688,129.67
  5. Step 5: Solve for x
    x = 688,129.67/1,362.66
  6. Step 6: Final answer
    x = 504.99

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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.