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Finding the Fourth Proportional to 578,709.90, 868,201.61 and 241,563.20

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Solution

The fourth proportional to 578,709.90, 868,201.61 and 241,563.20 is: 362,401.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,709.90 : 868,201.61 = 241,563.20 : x
  2. Step 2: Convert to fraction form
    578,709.90/868,201.61 = 241,563.20/x
  3. Step 3: Cross multiply
    578,709.90x = 868,201.61 × 241,563.20
  4. Step 4: Simplify right side
    578,709.90x = 209,725,553,607.93
  5. Step 5: Solve for x
    x = 209,725,553,607.93/578,709.90
  6. Step 6: Final answer
    x = 362,401.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.