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Finding the Fourth Proportional to 414,894.60, 620,908.30 and 248,801.80

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Solution

The fourth proportional to 414,894.60, 620,908.30 and 248,801.80 is: 372,343.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,894.60 : 620,908.30 = 248,801.80 : x
  2. Step 2: Convert to fraction form
    414,894.60/620,908.30 = 248,801.80/x
  3. Step 3: Cross multiply
    414,894.60x = 620,908.30 × 248,801.80
  4. Step 4: Simplify right side
    414,894.60x = 154,483,102,674.94
  5. Step 5: Solve for x
    x = 154,483,102,674.94/414,894.60
  6. Step 6: Final answer
    x = 372,343.01

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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.