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Finding the Fourth Proportional to 343,313.40, 514,824.30 and 165,874.80

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Solution

The fourth proportional to 343,313.40, 514,824.30 and 165,874.80 is: 248,741.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,313.40 : 514,824.30 = 165,874.80 : x
  2. Step 2: Convert to fraction form
    343,313.40/514,824.30 = 165,874.80/x
  3. Step 3: Cross multiply
    343,313.40x = 514,824.30 × 165,874.80
  4. Step 4: Simplify right side
    343,313.40x = 85,396,377,797.64
  5. Step 5: Solve for x
    x = 85,396,377,797.64/343,313.40
  6. Step 6: Final answer
    x = 248,741.76

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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.