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Finding the Fourth Proportional to 622,891,011.70, 934,336,517.55 and 300,404,739.70

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Solution

The fourth proportional to 622,891,011.70, 934,336,517.55 and 300,404,739.70 is: 450,607,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,891,011.70 : 934,336,517.55 = 300,404,739.70 : x
  2. Step 2: Convert to fraction form
    622,891,011.70/934,336,517.55 = 300,404,739.70/x
  3. Step 3: Cross multiply
    622,891,011.70x = 934,336,517.55 × 300,404,739.70
  4. Step 4: Simplify right side
    622,891,011.70x = 280,679,118,346,812,192
  5. Step 5: Solve for x
    x = 280,679,118,346,812,192/622,891,011.70
  6. Step 6: Final answer
    x = 450,607,109.55

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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.