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Finding the Fourth Proportional to 336,908.80, 505,363.20 and 248,335.30

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Solution

The fourth proportional to 336,908.80, 505,363.20 and 248,335.30 is: 372,502.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,908.80 : 505,363.20 = 248,335.30 : x
  2. Step 2: Convert to fraction form
    336,908.80/505,363.20 = 248,335.30/x
  3. Step 3: Cross multiply
    336,908.80x = 505,363.20 × 248,335.30
  4. Step 4: Simplify right side
    336,908.80x = 125,499,521,880.96
  5. Step 5: Solve for x
    x = 125,499,521,880.96/336,908.80
  6. Step 6: Final answer
    x = 372,502.95

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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.