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Finding the Fourth Proportional to 544,055.72, 816,222 and 319,606.04

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Solution

The fourth proportional to 544,055.72, 816,222 and 319,606.04 is: 479,490.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,055.72 : 816,222 = 319,606.04 : x
  2. Step 2: Convert to fraction form
    544,055.72/816,222 = 319,606.04/x
  3. Step 3: Cross multiply
    544,055.72x = 816,222 × 319,606.04
  4. Step 4: Simplify right side
    544,055.72x = 260,869,481,180.88
  5. Step 5: Solve for x
    x = 260,869,481,180.88/544,055.72
  6. Step 6: Final answer
    x = 479,490.37

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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.