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Finding the Fourth Proportional to 311,445,986.40, 467,168,979.60 and 311,445,986.40

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Solution

The fourth proportional to 311,445,986.40, 467,168,979.60 and 311,445,986.40 is: 467,168,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,445,986.40 : 467,168,979.60 = 311,445,986.40 : x
  2. Step 2: Convert to fraction form
    311,445,986.40/467,168,979.60 = 311,445,986.40/x
  3. Step 3: Cross multiply
    311,445,986.40x = 467,168,979.60 × 311,445,986.40
  4. Step 4: Simplify right side
    311,445,986.40x = 145,497,903,667,003,488
  5. Step 5: Solve for x
    x = 145,497,903,667,003,488/311,445,986.40
  6. Step 6: Final answer
    x = 467,168,979.60

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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.