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Finding the Fourth Proportional to 375,595.22, 518,500.89 and 214,419.08

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Solution

The fourth proportional to 375,595.22, 518,500.89 and 214,419.08 is: 296,000.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,595.22 : 518,500.89 = 214,419.08 : x
  2. Step 2: Convert to fraction form
    375,595.22/518,500.89 = 214,419.08/x
  3. Step 3: Cross multiply
    375,595.22x = 518,500.89 × 214,419.08
  4. Step 4: Simplify right side
    375,595.22x = 111,176,481,220.48
  5. Step 5: Solve for x
    x = 111,176,481,220.48/375,595.22
  6. Step 6: Final answer
    x = 296,000.79

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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.