Home / 723,921,993.84-1,085,721,393.12-335,694,378.72

Finding the Fourth Proportional to 723,921,993.84, 1,085,721,393.12 and 335,694,378.72

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Solution

The fourth proportional to 723,921,993.84, 1,085,721,393.12 and 335,694,378.72 is: 503,466,632.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,921,993.84 : 1,085,721,393.12 = 335,694,378.72 : x
  2. Step 2: Convert to fraction form
    723,921,993.84/1,085,721,393.12 = 335,694,378.72/x
  3. Step 3: Cross multiply
    723,921,993.84x = 1,085,721,393.12 × 335,694,378.72
  4. Step 4: Simplify right side
    723,921,993.84x = 364,470,568,526,431,296
  5. Step 5: Solve for x
    x = 364,470,568,526,431,296/723,921,993.84
  6. Step 6: Final answer
    x = 503,466,632.63

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1.5x scale

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.