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Finding the Fourth Proportional to 421,937.55, 582,158.67 and 240,583.34

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Solution

The fourth proportional to 421,937.55, 582,158.67 and 240,583.34 is: 331,939.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,937.55 : 582,158.67 = 240,583.34 : x
  2. Step 2: Convert to fraction form
    421,937.55/582,158.67 = 240,583.34/x
  3. Step 3: Cross multiply
    421,937.55x = 582,158.67 × 240,583.34
  4. Step 4: Simplify right side
    421,937.55x = 140,057,677,238.56
  5. Step 5: Solve for x
    x = 140,057,677,238.56/421,937.55
  6. Step 6: Final answer
    x = 331,939.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.