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Finding the Fourth Proportional to 650,636,876.73, 897,879,953.67 and 353,279,694

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Solution

The fourth proportional to 650,636,876.73, 897,879,953.67 and 353,279,694 is: 487,526,555.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,636,876.73 : 897,879,953.67 = 353,279,694 : x
  2. Step 2: Convert to fraction form
    650,636,876.73/897,879,953.67 = 353,279,694/x
  3. Step 3: Cross multiply
    650,636,876.73x = 897,879,953.67 × 353,279,694
  4. Step 4: Simplify right side
    650,636,876.73x = 317,202,755,281,271,744
  5. Step 5: Solve for x
    x = 317,202,755,281,271,744/650,636,876.73
  6. Step 6: Final answer
    x = 487,526,555.33

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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.