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Finding the Fourth Proportional to 373,468.32, 515,341.44 and 212,323.68

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Solution

The fourth proportional to 373,468.32, 515,341.44 and 212,323.68 is: 292,981.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,468.32 : 515,341.44 = 212,323.68 : x
  2. Step 2: Convert to fraction form
    373,468.32/515,341.44 = 212,323.68/x
  3. Step 3: Cross multiply
    373,468.32x = 515,341.44 × 212,323.68
  4. Step 4: Simplify right side
    373,468.32x = 109,419,190,997.30
  5. Step 5: Solve for x
    x = 109,419,190,997.30/373,468.32
  6. Step 6: Final answer
    x = 292,981.19

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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.