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Finding the Fourth Proportional to 372,469.42, 514,019.46 and 211,331.26

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Solution

The fourth proportional to 372,469.42, 514,019.46 and 211,331.26 is: 291,643.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,469.42 : 514,019.46 = 211,331.26 : x
  2. Step 2: Convert to fraction form
    372,469.42/514,019.46 = 211,331.26/x
  3. Step 3: Cross multiply
    372,469.42x = 514,019.46 × 211,331.26
  4. Step 4: Simplify right side
    372,469.42x = 108,628,380,146.32
  5. Step 5: Solve for x
    x = 108,628,380,146.32/372,469.42
  6. Step 6: Final answer
    x = 291,643.75

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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.