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Finding the Fourth Proportional to 375,495.64, 518,189.34 and 224,563.48

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Solution

The fourth proportional to 375,495.64, 518,189.34 and 224,563.48 is: 309,900.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,495.64 : 518,189.34 = 224,563.48 : x
  2. Step 2: Convert to fraction form
    375,495.64/518,189.34 = 224,563.48/x
  3. Step 3: Cross multiply
    375,495.64x = 518,189.34 × 224,563.48
  4. Step 4: Simplify right side
    375,495.64x = 116,366,401,489.30
  5. Step 5: Solve for x
    x = 116,366,401,489.30/375,495.64
  6. Step 6: Final answer
    x = 309,900.81

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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.