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Finding the Fourth Proportional to 578,847.84, 798,838.50 and 349,401.48

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Solution

The fourth proportional to 578,847.84, 798,838.50 and 349,401.48 is: 482,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,847.84 : 798,838.50 = 349,401.48 : x
  2. Step 2: Convert to fraction form
    578,847.84/798,838.50 = 349,401.48/x
  3. Step 3: Cross multiply
    578,847.84x = 798,838.50 × 349,401.48
  4. Step 4: Simplify right side
    578,847.84x = 279,115,354,180.98
  5. Step 5: Solve for x
    x = 279,115,354,180.98/578,847.84
  6. Step 6: Final answer
    x = 482,191.23

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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.