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Finding the Fourth Proportional to 617,892.20, 926,147.10 and 262,845.80

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Solution

The fourth proportional to 617,892.20, 926,147.10 and 262,845.80 is: 393,974.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,892.20 : 926,147.10 = 262,845.80 : x
  2. Step 2: Convert to fraction form
    617,892.20/926,147.10 = 262,845.80/x
  3. Step 3: Cross multiply
    617,892.20x = 926,147.10 × 262,845.80
  4. Step 4: Simplify right side
    617,892.20x = 243,433,875,417.18
  5. Step 5: Solve for x
    x = 243,433,875,417.18/617,892.20
  6. Step 6: Final answer
    x = 393,974.67

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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.