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Finding the Fourth Proportional to 414,074,612.80, 620,584,414.80 and 220,078,964.80

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Solution

The fourth proportional to 414,074,612.80, 620,584,414.80 and 220,078,964.80 is: 329,838,080.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,074,612.80 : 620,584,414.80 = 220,078,964.80 : x
  2. Step 2: Convert to fraction form
    414,074,612.80/620,584,414.80 = 220,078,964.80/x
  3. Step 3: Cross multiply
    414,074,612.80x = 620,584,414.80 × 220,078,964.80
  4. Step 4: Simplify right side
    414,074,612.80x = 136,577,575,580,197,792
  5. Step 5: Solve for x
    x = 136,577,575,580,197,792/414,074,612.80
  6. Step 6: Final answer
    x = 329,838,080.77

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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.