Home / 689,538,413.30-951,583,201.53-376,292,811.38

Finding the Fourth Proportional to 689,538,413.30, 951,583,201.53 and 376,292,811.38

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Solution

The fourth proportional to 689,538,413.30, 951,583,201.53 and 376,292,811.38 is: 519,295,098.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,538,413.30 : 951,583,201.53 = 376,292,811.38 : x
  2. Step 2: Convert to fraction form
    689,538,413.30/951,583,201.53 = 376,292,811.38/x
  3. Step 3: Cross multiply
    689,538,413.30x = 951,583,201.53 × 376,292,811.38
  4. Step 4: Simplify right side
    689,538,413.30x = 358,073,918,165,704,832
  5. Step 5: Solve for x
    x = 358,073,918,165,704,832/689,538,413.30
  6. Step 6: Final answer
    x = 519,295,098.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.