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Finding the Fourth Proportional to 819,702,555.60, 1,229,553,833.40 and 819,702,555.60

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Solution

The fourth proportional to 819,702,555.60, 1,229,553,833.40 and 819,702,555.60 is: 1,229,553,833.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,702,555.60 : 1,229,553,833.40 = 819,702,555.60 : x
  2. Step 2: Convert to fraction form
    819,702,555.60/1,229,553,833.40 = 819,702,555.60/x
  3. Step 3: Cross multiply
    819,702,555.60x = 1,229,553,833.40 × 819,702,555.60
  4. Step 4: Simplify right side
    819,702,555.60x = 1,007,868,419,485,756,800
  5. Step 5: Solve for x
    x = 1,007,868,419,485,756,800/819,702,555.60
  6. Step 6: Final answer
    x = 1,229,553,833.40

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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.