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Finding the Fourth Proportional to 360,888,663.76, 498,026,724.36 and 195,876,267.28

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Solution

The fourth proportional to 360,888,663.76, 498,026,724.36 and 195,876,267.28 is: 270,309,448.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,888,663.76 : 498,026,724.36 = 195,876,267.28 : x
  2. Step 2: Convert to fraction form
    360,888,663.76/498,026,724.36 = 195,876,267.28/x
  3. Step 3: Cross multiply
    360,888,663.76x = 498,026,724.36 × 195,876,267.28
  4. Step 4: Simplify right side
    360,888,663.76x = 97,551,615,773,322,256
  5. Step 5: Solve for x
    x = 97,551,615,773,322,256/360,888,663.76
  6. Step 6: Final answer
    x = 270,309,448.78

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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.