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Finding the Fourth Proportional to 349,440.78, 481,038.24 and 258,625.61

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Solution

The fourth proportional to 349,440.78, 481,038.24 and 258,625.61 is: 356,022.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,440.78 : 481,038.24 = 258,625.61 : x
  2. Step 2: Convert to fraction form
    349,440.78/481,038.24 = 258,625.61/x
  3. Step 3: Cross multiply
    349,440.78x = 481,038.24 × 258,625.61
  4. Step 4: Simplify right side
    349,440.78x = 124,408,808,621.88
  5. Step 5: Solve for x
    x = 124,408,808,621.88/349,440.78
  6. Step 6: Final answer
    x = 356,022.58

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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.