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Finding the Fourth Proportional to 372,328.56, 513,802.44 and 211,198.32

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Solution

The fourth proportional to 372,328.56, 513,802.44 and 211,198.32 is: 291,447.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,328.56 : 513,802.44 = 211,198.32 : x
  2. Step 2: Convert to fraction form
    372,328.56/513,802.44 = 211,198.32/x
  3. Step 3: Cross multiply
    372,328.56x = 513,802.44 × 211,198.32
  4. Step 4: Simplify right side
    372,328.56x = 108,514,212,139.90
  5. Step 5: Solve for x
    x = 108,514,212,139.90/372,328.56
  6. Step 6: Final answer
    x = 291,447.46

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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.