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Finding the Fourth Proportional to 393,503.34, 590,192.10 and 140,736.63

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Solution

The fourth proportional to 393,503.34, 590,192.10 and 140,736.63 is: 211,082.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,503.34 : 590,192.10 = 140,736.63 : x
  2. Step 2: Convert to fraction form
    393,503.34/590,192.10 = 140,736.63/x
  3. Step 3: Cross multiply
    393,503.34x = 590,192.10 × 140,736.63
  4. Step 4: Simplify right side
    393,503.34x = 83,061,647,206.62
  5. Step 5: Solve for x
    x = 83,061,647,206.62/393,503.34
  6. Step 6: Final answer
    x = 211,082.45

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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.