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Finding the Fourth Proportional to 541,297.80, 811,946.70 and 260,843.40

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Solution

The fourth proportional to 541,297.80, 811,946.70 and 260,843.40 is: 391,265.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,297.80 : 811,946.70 = 260,843.40 : x
  2. Step 2: Convert to fraction form
    541,297.80/811,946.70 = 260,843.40/x
  3. Step 3: Cross multiply
    541,297.80x = 811,946.70 × 260,843.40
  4. Step 4: Simplify right side
    541,297.80x = 211,790,937,846.78
  5. Step 5: Solve for x
    x = 211,790,937,846.78/541,297.80
  6. Step 6: Final answer
    x = 391,265.10

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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.