Home / 677,002,972.05-933,868,277.19-425,709,651.78

Finding the Fourth Proportional to 677,002,972.05, 933,868,277.19 and 425,709,651.78

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Solution

The fourth proportional to 677,002,972.05, 933,868,277.19 and 425,709,651.78 is: 587,230,419.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,002,972.05 : 933,868,277.19 = 425,709,651.78 : x
  2. Step 2: Convert to fraction form
    677,002,972.05/933,868,277.19 = 425,709,651.78/x
  3. Step 3: Cross multiply
    677,002,972.05x = 933,868,277.19 × 425,709,651.78
  4. Step 4: Simplify right side
    677,002,972.05x = 397,556,739,090,943,424
  5. Step 5: Solve for x
    x = 397,556,739,090,943,424/677,002,972.05
  6. Step 6: Final answer
    x = 587,230,419.22

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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.