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Finding the Fourth Proportional to 408,069.10, 571,763.30 and 408,069.10

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Solution

The fourth proportional to 408,069.10, 571,763.30 and 408,069.10 is: 571,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,069.10 : 571,763.30 = 408,069.10 : x
  2. Step 2: Convert to fraction form
    408,069.10/571,763.30 = 408,069.10/x
  3. Step 3: Cross multiply
    408,069.10x = 571,763.30 × 408,069.10
  4. Step 4: Simplify right side
    408,069.10x = 233,318,935,244.03
  5. Step 5: Solve for x
    x = 233,318,935,244.03/408,069.10
  6. Step 6: Final answer
    x = 571,763.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.