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Finding the Fourth Proportional to 543,436.80, 809,523.84 and 534,494.40

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Solution

The fourth proportional to 543,436.80, 809,523.84 and 534,494.40 is: 796,202.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,436.80 : 809,523.84 = 534,494.40 : x
  2. Step 2: Convert to fraction form
    543,436.80/809,523.84 = 534,494.40/x
  3. Step 3: Cross multiply
    543,436.80x = 809,523.84 × 534,494.40
  4. Step 4: Simplify right side
    543,436.80x = 432,685,959,146.50
  5. Step 5: Solve for x
    x = 432,685,959,146.50/543,436.80
  6. Step 6: Final answer
    x = 796,202.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.