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Finding the Fourth Proportional to 449,364.11, 619,837.72 and 341,698.10

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Solution

The fourth proportional to 449,364.11, 619,837.72 and 341,698.10 is: 471,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,364.11 : 619,837.72 = 341,698.10 : x
  2. Step 2: Convert to fraction form
    449,364.11/619,837.72 = 341,698.10/x
  3. Step 3: Cross multiply
    449,364.11x = 619,837.72 × 341,698.10
  4. Step 4: Simplify right side
    449,364.11x = 211,797,367,278.90
  5. Step 5: Solve for x
    x = 211,797,367,278.90/449,364.11
  6. Step 6: Final answer
    x = 471,326.85

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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.