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Finding the Fourth Proportional to 647,859,597.28, 972,334,418.70 and 606,998,796.46

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Solution

The fourth proportional to 647,859,597.28, 972,334,418.70 and 606,998,796.46 is: 911,008,842.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,859,597.28 : 972,334,418.70 = 606,998,796.46 : x
  2. Step 2: Convert to fraction form
    647,859,597.28/972,334,418.70 = 606,998,796.46/x
  3. Step 3: Cross multiply
    647,859,597.28x = 972,334,418.70 × 606,998,796.46
  4. Step 4: Simplify right side
    647,859,597.28x = 590,205,821,907,533,824
  5. Step 5: Solve for x
    x = 590,205,821,907,533,824/647,859,597.28
  6. Step 6: Final answer
    x = 911,008,842.63

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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.