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Finding the Fourth Proportional to 372,542.91, 514,094.93 and 211,388.36

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Solution

The fourth proportional to 372,542.91, 514,094.93 and 211,388.36 is: 291,707.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,542.91 : 514,094.93 = 211,388.36 : x
  2. Step 2: Convert to fraction form
    372,542.91/514,094.93 = 211,388.36/x
  3. Step 3: Cross multiply
    372,542.91x = 514,094.93 × 211,388.36
  4. Step 4: Simplify right side
    372,542.91x = 108,673,680,509.60
  5. Step 5: Solve for x
    x = 108,673,680,509.60/372,542.91
  6. Step 6: Final answer
    x = 291,707.82

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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.