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Finding the Fourth Proportional to 617,940.20, 926,219.10 and 351,828.20

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Solution

The fourth proportional to 617,940.20, 926,219.10 and 351,828.20 is: 527,348.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,940.20 : 926,219.10 = 351,828.20 : x
  2. Step 2: Convert to fraction form
    617,940.20/926,219.10 = 351,828.20/x
  3. Step 3: Cross multiply
    617,940.20x = 926,219.10 × 351,828.20
  4. Step 4: Simplify right side
    617,940.20x = 325,869,998,758.62
  5. Step 5: Solve for x
    x = 325,869,998,758.62/617,940.20
  6. Step 6: Final answer
    x = 527,348.76

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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.