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Finding the Fourth Proportional to 340,574.24, 510,861.48 and 140,674.92

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Solution

The fourth proportional to 340,574.24, 510,861.48 and 140,674.92 is: 211,012.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,574.24 : 510,861.48 = 140,674.92 : x
  2. Step 2: Convert to fraction form
    340,574.24/510,861.48 = 140,674.92/x
  3. Step 3: Cross multiply
    340,574.24x = 510,861.48 × 140,674.92
  4. Step 4: Simplify right side
    340,574.24x = 71,865,397,830.08
  5. Step 5: Solve for x
    x = 71,865,397,830.08/340,574.24
  6. Step 6: Final answer
    x = 211,012.43

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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.