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Finding the Fourth Proportional to 2,346.74, 3,520.60 and 885.90

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Solution

The fourth proportional to 2,346.74, 3,520.60 and 885.90 is: 1,329.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,346.74 : 3,520.60 = 885.90 : x
  2. Step 2: Convert to fraction form
    2,346.74/3,520.60 = 885.90/x
  3. Step 3: Cross multiply
    2,346.74x = 3,520.60 × 885.90
  4. Step 4: Simplify right side
    2,346.74x = 3,118,899.54
  5. Step 5: Solve for x
    x = 3,118,899.54/2,346.74
  6. Step 6: Final answer
    x = 1,329.03

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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.