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Finding the Fourth Proportional to 373,361.49, 515,218.59 and 212,194.17

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Solution

The fourth proportional to 373,361.49, 515,218.59 and 212,194.17 is: 292,816.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,361.49 : 515,218.59 = 212,194.17 : x
  2. Step 2: Convert to fraction form
    373,361.49/515,218.59 = 212,194.17/x
  3. Step 3: Cross multiply
    373,361.49x = 515,218.59 × 212,194.17
  4. Step 4: Simplify right side
    373,361.49x = 109,326,381,073.62
  5. Step 5: Solve for x
    x = 109,326,381,073.62/373,361.49
  6. Step 6: Final answer
    x = 292,816.44

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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.