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Finding the Fourth Proportional to 418,892.34, 623,600.37 and 416,401.20

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Solution

The fourth proportional to 418,892.34, 623,600.37 and 416,401.20 is: 619,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,892.34 : 623,600.37 = 416,401.20 : x
  2. Step 2: Convert to fraction form
    418,892.34/623,600.37 = 416,401.20/x
  3. Step 3: Cross multiply
    418,892.34x = 623,600.37 × 416,401.20
  4. Step 4: Simplify right side
    418,892.34x = 259,667,942,388.44
  5. Step 5: Solve for x
    x = 259,667,942,388.44/418,892.34
  6. Step 6: Final answer
    x = 619,891.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.