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Finding the Fourth Proportional to 386,445,216.60, 579,667,824.90 and 386,445,216.60

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Solution

The fourth proportional to 386,445,216.60, 579,667,824.90 and 386,445,216.60 is: 579,667,824.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,445,216.60 : 579,667,824.90 = 386,445,216.60 : x
  2. Step 2: Convert to fraction form
    386,445,216.60/579,667,824.90 = 386,445,216.60/x
  3. Step 3: Cross multiply
    386,445,216.60x = 579,667,824.90 × 386,445,216.60
  4. Step 4: Simplify right side
    386,445,216.60x = 224,009,858,149,531,392
  5. Step 5: Solve for x
    x = 224,009,858,149,531,392/386,445,216.60
  6. Step 6: Final answer
    x = 579,667,824.90

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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.