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Finding the Fourth Proportional to 372,664.34, 514,323.24 and 211,571.54

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Solution

The fourth proportional to 372,664.34, 514,323.24 and 211,571.54 is: 291,995.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,664.34 : 514,323.24 = 211,571.54 : x
  2. Step 2: Convert to fraction form
    372,664.34/514,323.24 = 211,571.54/x
  3. Step 3: Cross multiply
    372,664.34x = 514,323.24 × 211,571.54
  4. Step 4: Simplify right side
    372,664.34x = 108,816,159,944.59
  5. Step 5: Solve for x
    x = 108,816,159,944.59/372,664.34
  6. Step 6: Final answer
    x = 291,995.10

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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.