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Finding the Fourth Proportional to 543,370.80, 815,056.20 and 330,794.40

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Solution

The fourth proportional to 543,370.80, 815,056.20 and 330,794.40 is: 496,191.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,370.80 : 815,056.20 = 330,794.40 : x
  2. Step 2: Convert to fraction form
    543,370.80/815,056.20 = 330,794.40/x
  3. Step 3: Cross multiply
    543,370.80x = 815,056.20 × 330,794.40
  4. Step 4: Simplify right side
    543,370.80x = 269,616,026,645.28
  5. Step 5: Solve for x
    x = 269,616,026,645.28/543,370.80
  6. Step 6: Final answer
    x = 496,191.60

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Similar ratio
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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.