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Finding the Fourth Proportional to 375,906.26, 518,780.58 and 212,597.18

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Solution

The fourth proportional to 375,906.26, 518,780.58 and 212,597.18 is: 293,401.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,906.26 : 518,780.58 = 212,597.18 : x
  2. Step 2: Convert to fraction form
    375,906.26/518,780.58 = 212,597.18/x
  3. Step 3: Cross multiply
    375,906.26x = 518,780.58 × 212,597.18
  4. Step 4: Simplify right side
    375,906.26x = 110,291,288,346.76
  5. Step 5: Solve for x
    x = 110,291,288,346.76/375,906.26
  6. Step 6: Final answer
    x = 293,401.04

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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.