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Finding the Fourth Proportional to 481,059.72, 721,838.40 and 349,029.72

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Solution

The fourth proportional to 481,059.72, 721,838.40 and 349,029.72 is: 523,725.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,059.72 : 721,838.40 = 349,029.72 : x
  2. Step 2: Convert to fraction form
    481,059.72/721,838.40 = 349,029.72/x
  3. Step 3: Cross multiply
    481,059.72x = 721,838.40 × 349,029.72
  4. Step 4: Simplify right side
    481,059.72x = 251,943,054,637.25
  5. Step 5: Solve for x
    x = 251,943,054,637.25/481,059.72
  6. Step 6: Final answer
    x = 523,725.11

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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.