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Finding the Fourth Proportional to 519,908.20, 778,134.30 and 377,348.20

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Solution

The fourth proportional to 519,908.20, 778,134.30 and 377,348.20 is: 564,768.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,908.20 : 778,134.30 = 377,348.20 : x
  2. Step 2: Convert to fraction form
    519,908.20/778,134.30 = 377,348.20/x
  3. Step 3: Cross multiply
    519,908.20x = 778,134.30 × 377,348.20
  4. Step 4: Simplify right side
    519,908.20x = 293,627,577,463.26
  5. Step 5: Solve for x
    x = 293,627,577,463.26/519,908.20
  6. Step 6: Final answer
    x = 564,768.12

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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.