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Finding the Fourth Proportional to 415,418.17, 622,878.10 and 190,496.84

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Solution

The fourth proportional to 415,418.17, 622,878.10 and 190,496.84 is: 285,631.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,418.17 : 622,878.10 = 190,496.84 : x
  2. Step 2: Convert to fraction form
    415,418.17/622,878.10 = 190,496.84/x
  3. Step 3: Cross multiply
    415,418.17x = 622,878.10 × 190,496.84
  4. Step 4: Simplify right side
    415,418.17x = 118,656,309,755.20
  5. Step 5: Solve for x
    x = 118,656,309,755.20/415,418.17
  6. Step 6: Final answer
    x = 285,631.01

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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.