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Finding the Fourth Proportional to 336,490.11, 464,406.72 and 215,767.71

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Solution

The fourth proportional to 336,490.11, 464,406.72 and 215,767.71 is: 297,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,490.11 : 464,406.72 = 215,767.71 : x
  2. Step 2: Convert to fraction form
    336,490.11/464,406.72 = 215,767.71/x
  3. Step 3: Cross multiply
    336,490.11x = 464,406.72 × 215,767.71
  4. Step 4: Simplify right side
    336,490.11x = 100,203,974,483.01
  5. Step 5: Solve for x
    x = 100,203,974,483.01/336,490.11
  6. Step 6: Final answer
    x = 297,791.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.