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Finding the Fourth Proportional to 620,636,184.65, 857,295,489.72 and 460,025,761.31

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Solution

The fourth proportional to 620,636,184.65, 857,295,489.72 and 460,025,761.31 is: 635,441,535.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,636,184.65 : 857,295,489.72 = 460,025,761.31 : x
  2. Step 2: Convert to fraction form
    620,636,184.65/857,295,489.72 = 460,025,761.31/x
  3. Step 3: Cross multiply
    620,636,184.65x = 857,295,489.72 × 460,025,761.31
  4. Step 4: Simplify right side
    620,636,184.65x = 394,378,010,321,785,792
  5. Step 5: Solve for x
    x = 394,378,010,321,785,792/620,636,184.65
  6. Step 6: Final answer
    x = 635,441,535.76

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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.