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Finding the Fourth Proportional to 341,578.20, 511,715.30 and 191,364.11

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Solution

The fourth proportional to 341,578.20, 511,715.30 and 191,364.11 is: 286,680.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,578.20 : 511,715.30 = 191,364.11 : x
  2. Step 2: Convert to fraction form
    341,578.20/511,715.30 = 191,364.11/x
  3. Step 3: Cross multiply
    341,578.20x = 511,715.30 × 191,364.11
  4. Step 4: Simplify right side
    341,578.20x = 97,923,942,796.65
  5. Step 5: Solve for x
    x = 97,923,942,796.65/341,578.20
  6. Step 6: Final answer
    x = 286,680.89

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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.