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Finding the Fourth Proportional to 665,800.68, 998,493.66 and 222,465

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Solution

The fourth proportional to 665,800.68, 998,493.66 and 222,465 is: 333,628.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,800.68 : 998,493.66 = 222,465 : x
  2. Step 2: Convert to fraction form
    665,800.68/998,493.66 = 222,465/x
  3. Step 3: Cross multiply
    665,800.68x = 998,493.66 × 222,465
  4. Step 4: Simplify right side
    665,800.68x = 222,129,892,071.90
  5. Step 5: Solve for x
    x = 222,129,892,071.90/665,800.68
  6. Step 6: Final answer
    x = 333,628.21

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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.