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Finding the Fourth Proportional to 399,597.66, 599,396.46 and 162,958.74

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Solution

The fourth proportional to 399,597.66, 599,396.46 and 162,958.74 is: 244,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,597.66 : 599,396.46 = 162,958.74 : x
  2. Step 2: Convert to fraction form
    399,597.66/599,396.46 = 162,958.74/x
  3. Step 3: Cross multiply
    399,597.66x = 599,396.46 × 162,958.74
  4. Step 4: Simplify right side
    399,597.66x = 97,676,891,882.06
  5. Step 5: Solve for x
    x = 97,676,891,882.06/399,597.66
  6. Step 6: Final answer
    x = 244,438.10

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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.