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Finding the Fourth Proportional to 2,662,632,600.64, 3,994,493,628 and 915,608,449.24

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Solution

The fourth proportional to 2,662,632,600.64, 3,994,493,628 and 915,608,449.24 is: 1,373,599,990.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662,632,600.64 : 3,994,493,628 = 915,608,449.24 : x
  2. Step 2: Convert to fraction form
    2,662,632,600.64/3,994,493,628 = 915,608,449.24/x
  3. Step 3: Cross multiply
    2,662,632,600.64x = 3,994,493,628 × 915,608,449.24
  4. Step 4: Simplify right side
    2,662,632,600.64x = 3,657,392,116,232,141,312
  5. Step 5: Solve for x
    x = 3,657,392,116,232,141,312/2,662,632,600.64
  6. Step 6: Final answer
    x = 1,373,599,990.98

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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.