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Finding the Fourth Proportional to 372,550.35, 514,105.19 and 211,395.79

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Solution

The fourth proportional to 372,550.35, 514,105.19 and 211,395.79 is: 291,718.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,550.35 : 514,105.19 = 211,395.79 : x
  2. Step 2: Convert to fraction form
    372,550.35/514,105.19 = 211,395.79/x
  3. Step 3: Cross multiply
    372,550.35x = 514,105.19 × 211,395.79
  4. Step 4: Simplify right side
    372,550.35x = 108,679,670,212.62
  5. Step 5: Solve for x
    x = 108,679,670,212.62/372,550.35
  6. Step 6: Final answer
    x = 291,718.07

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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.