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Finding the Fourth Proportional to 404,313,117.80, 606,867,807.90 and 200,071,812.20

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Solution

The fourth proportional to 404,313,117.80, 606,867,807.90 and 200,071,812.20 is: 300,304,731.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,313,117.80 : 606,867,807.90 = 200,071,812.20 : x
  2. Step 2: Convert to fraction form
    404,313,117.80/606,867,807.90 = 200,071,812.20/x
  3. Step 3: Cross multiply
    404,313,117.80x = 606,867,807.90 × 200,071,812.20
  4. Step 4: Simplify right side
    404,313,117.80x = 121,417,142,092,394,464
  5. Step 5: Solve for x
    x = 121,417,142,092,394,464/404,313,117.80
  6. Step 6: Final answer
    x = 300,304,731.03

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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.