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Finding the Fourth Proportional to 408,554.20, 612,906.60 and 183,920.12

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Solution

The fourth proportional to 408,554.20, 612,906.60 and 183,920.12 is: 275,914.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,554.20 : 612,906.60 = 183,920.12 : x
  2. Step 2: Convert to fraction form
    408,554.20/612,906.60 = 183,920.12/x
  3. Step 3: Cross multiply
    408,554.20x = 612,906.60 × 183,920.12
  4. Step 4: Simplify right side
    408,554.20x = 112,725,855,420.79
  5. Step 5: Solve for x
    x = 112,725,855,420.79/408,554.20
  6. Step 6: Final answer
    x = 275,914.08

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1.5x scale

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.