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Finding the Fourth Proportional to 617,821.80, 926,732.70 and 262,847.40

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Solution

The fourth proportional to 617,821.80, 926,732.70 and 262,847.40 is: 394,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,821.80 : 926,732.70 = 262,847.40 : x
  2. Step 2: Convert to fraction form
    617,821.80/926,732.70 = 262,847.40/x
  3. Step 3: Cross multiply
    617,821.80x = 926,732.70 × 262,847.40
  4. Step 4: Simplify right side
    617,821.80x = 243,589,280,689.98
  5. Step 5: Solve for x
    x = 243,589,280,689.98/617,821.80
  6. Step 6: Final answer
    x = 394,271.10

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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.