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Finding the Fourth Proportional to 269,577,985.40, 404,366,978.10 and 264,203,214.20

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Solution

The fourth proportional to 269,577,985.40, 404,366,978.10 and 264,203,214.20 is: 396,304,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,577,985.40 : 404,366,978.10 = 264,203,214.20 : x
  2. Step 2: Convert to fraction form
    269,577,985.40/404,366,978.10 = 264,203,214.20/x
  3. Step 3: Cross multiply
    269,577,985.40x = 404,366,978.10 × 264,203,214.20
  4. Step 4: Simplify right side
    269,577,985.40x = 106,835,055,330,361,008
  5. Step 5: Solve for x
    x = 106,835,055,330,361,008/269,577,985.40
  6. Step 6: Final answer
    x = 396,304,821.30

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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.