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Finding the Fourth Proportional to 544,376.84, 816,731.30 and 278,324.13

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Solution

The fourth proportional to 544,376.84, 816,731.30 and 278,324.13 is: 417,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,376.84 : 816,731.30 = 278,324.13 : x
  2. Step 2: Convert to fraction form
    544,376.84/816,731.30 = 278,324.13/x
  3. Step 3: Cross multiply
    544,376.84x = 816,731.30 × 278,324.13
  4. Step 4: Simplify right side
    544,376.84x = 227,316,032,274.82
  5. Step 5: Solve for x
    x = 227,316,032,274.82/544,376.84
  6. Step 6: Final answer
    x = 417,571.10

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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.