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Finding the Fourth Proportional to 665,842.96, 998,863.88 and 245,086.84

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Solution

The fourth proportional to 665,842.96, 998,863.88 and 245,086.84 is: 367,666.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,842.96 : 998,863.88 = 245,086.84 : x
  2. Step 2: Convert to fraction form
    665,842.96/998,863.88 = 245,086.84/x
  3. Step 3: Cross multiply
    665,842.96x = 998,863.88 × 245,086.84
  4. Step 4: Simplify right side
    665,842.96x = 244,808,391,939.34
  5. Step 5: Solve for x
    x = 244,808,391,939.34/665,842.96
  6. Step 6: Final answer
    x = 367,666.86

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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.