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Finding the Fourth Proportional to 763,344,015.90, 1,145,016,023.85 and 763,344,015.90

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Solution

The fourth proportional to 763,344,015.90, 1,145,016,023.85 and 763,344,015.90 is: 1,145,016,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,344,015.90 : 1,145,016,023.85 = 763,344,015.90 : x
  2. Step 2: Convert to fraction form
    763,344,015.90/1,145,016,023.85 = 763,344,015.90/x
  3. Step 3: Cross multiply
    763,344,015.90x = 1,145,016,023.85 × 763,344,015.90
  4. Step 4: Simplify right side
    763,344,015.90x = 874,041,129,915,509,120
  5. Step 5: Solve for x
    x = 874,041,129,915,509,120/763,344,015.90
  6. Step 6: Final answer
    x = 1,145,016,023.85

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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.