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Finding the Fourth Proportional to 627,861,707.44, 866,531,662.05 and 360,042,347.59

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Solution

The fourth proportional to 627,861,707.44, 866,531,662.05 and 360,042,347.59 is: 496,905,751.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,861,707.44 : 866,531,662.05 = 360,042,347.59 : x
  2. Step 2: Convert to fraction form
    627,861,707.44/866,531,662.05 = 360,042,347.59/x
  3. Step 3: Cross multiply
    627,861,707.44x = 866,531,662.05 × 360,042,347.59
  4. Step 4: Simplify right side
    627,861,707.44x = 311,988,093,864,730,304
  5. Step 5: Solve for x
    x = 311,988,093,864,730,304/627,861,707.44
  6. Step 6: Final answer
    x = 496,905,751.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.