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Finding the Fourth Proportional to 802,914.80, 1,203,351.60 and 329,064.80

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Solution

The fourth proportional to 802,914.80, 1,203,351.60 and 329,064.80 is: 493,178.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,914.80 : 1,203,351.60 = 329,064.80 : x
  2. Step 2: Convert to fraction form
    802,914.80/1,203,351.60 = 329,064.80/x
  3. Step 3: Cross multiply
    802,914.80x = 1,203,351.60 × 329,064.80
  4. Step 4: Simplify right side
    802,914.80x = 395,980,653,583.68
  5. Step 5: Solve for x
    x = 395,980,653,583.68/802,914.80
  6. Step 6: Final answer
    x = 493,178.92

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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.