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Finding the Fourth Proportional to 441,156.88, 608,470.28 and 279,872.72

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Solution

The fourth proportional to 441,156.88, 608,470.28 and 279,872.72 is: 386,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,156.88 : 608,470.28 = 279,872.72 : x
  2. Step 2: Convert to fraction form
    441,156.88/608,470.28 = 279,872.72/x
  3. Step 3: Cross multiply
    441,156.88x = 608,470.28 × 279,872.72
  4. Step 4: Simplify right side
    441,156.88x = 170,294,232,302.76
  5. Step 5: Solve for x
    x = 170,294,232,302.76/441,156.88
  6. Step 6: Final answer
    x = 386,017.40

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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.