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Finding the Fourth Proportional to 445,248,047.60, 622,073,246.80 and 445,248,047.60

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Solution

The fourth proportional to 445,248,047.60, 622,073,246.80 and 445,248,047.60 is: 622,073,246.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,248,047.60 : 622,073,246.80 = 445,248,047.60 : x
  2. Step 2: Convert to fraction form
    445,248,047.60/622,073,246.80 = 445,248,047.60/x
  3. Step 3: Cross multiply
    445,248,047.60x = 622,073,246.80 × 445,248,047.60
  4. Step 4: Simplify right side
    445,248,047.60x = 276,976,898,601,892,928
  5. Step 5: Solve for x
    x = 276,976,898,601,892,928/445,248,047.60
  6. Step 6: Final answer
    x = 622,073,246.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.