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Finding the Fourth Proportional to 376,402.42, 563,422.65 and 198,369.69

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Solution

The fourth proportional to 376,402.42, 563,422.65 and 198,369.69 is: 296,932.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,402.42 : 563,422.65 = 198,369.69 : x
  2. Step 2: Convert to fraction form
    376,402.42/563,422.65 = 198,369.69/x
  3. Step 3: Cross multiply
    376,402.42x = 563,422.65 × 198,369.69
  4. Step 4: Simplify right side
    376,402.42x = 111,765,974,678.59
  5. Step 5: Solve for x
    x = 111,765,974,678.59/376,402.42
  6. Step 6: Final answer
    x = 296,932.14

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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.