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Finding the Fourth Proportional to 498,325,327.70, 747,487,991.55 and 265,873,034.30

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Solution

The fourth proportional to 498,325,327.70, 747,487,991.55 and 265,873,034.30 is: 398,809,551.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,325,327.70 : 747,487,991.55 = 265,873,034.30 : x
  2. Step 2: Convert to fraction form
    498,325,327.70/747,487,991.55 = 265,873,034.30/x
  3. Step 3: Cross multiply
    498,325,327.70x = 747,487,991.55 × 265,873,034.30
  4. Step 4: Simplify right side
    498,325,327.70x = 198,736,900,416,211,264
  5. Step 5: Solve for x
    x = 198,736,900,416,211,264/498,325,327.70
  6. Step 6: Final answer
    x = 398,809,551.45

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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.