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Finding the Fourth Proportional to 617,850.20, 926,861.70 and 262,861.40

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Solution

The fourth proportional to 617,850.20, 926,861.70 and 262,861.40 is: 394,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,850.20 : 926,861.70 = 262,861.40 : x
  2. Step 2: Convert to fraction form
    617,850.20/926,861.70 = 262,861.40/x
  3. Step 3: Cross multiply
    617,850.20x = 926,861.70 × 262,861.40
  4. Step 4: Simplify right side
    617,850.20x = 243,636,164,068.38
  5. Step 5: Solve for x
    x = 243,636,164,068.38/617,850.20
  6. Step 6: Final answer
    x = 394,328.86

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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.