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Finding the Fourth Proportional to 624,604.25, 936,914.04 and 219,808.51

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Solution

The fourth proportional to 624,604.25, 936,914.04 and 219,808.51 is: 329,715.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,604.25 : 936,914.04 = 219,808.51 : x
  2. Step 2: Convert to fraction form
    624,604.25/936,914.04 = 219,808.51/x
  3. Step 3: Cross multiply
    624,604.25x = 936,914.04 × 219,808.51
  4. Step 4: Simplify right side
    624,604.25x = 205,941,676,788.20
  5. Step 5: Solve for x
    x = 205,941,676,788.20/624,604.25
  6. Step 6: Final answer
    x = 329,715.46

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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.