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Finding the Fourth Proportional to 252,437,979.60, 378,656,969.40 and 225,228,200.40

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Solution

The fourth proportional to 252,437,979.60, 378,656,969.40 and 225,228,200.40 is: 337,842,300.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,437,979.60 : 378,656,969.40 = 225,228,200.40 : x
  2. Step 2: Convert to fraction form
    252,437,979.60/378,656,969.40 = 225,228,200.40/x
  3. Step 3: Cross multiply
    252,437,979.60x = 378,656,969.40 × 225,228,200.40
  4. Step 4: Simplify right side
    252,437,979.60x = 85,284,227,786,879,872
  5. Step 5: Solve for x
    x = 85,284,227,786,879,872/252,437,979.60
  6. Step 6: Final answer
    x = 337,842,300.60

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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.