Home / 1,086,700.07-1,629,997.50-412,728.78

Finding the Fourth Proportional to 1,086,700.07, 1,629,997.50 and 412,728.78

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Solution

The fourth proportional to 1,086,700.07, 1,629,997.50 and 412,728.78 is: 619,073.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,700.07 : 1,629,997.50 = 412,728.78 : x
  2. Step 2: Convert to fraction form
    1,086,700.07/1,629,997.50 = 412,728.78/x
  3. Step 3: Cross multiply
    1,086,700.07x = 1,629,997.50 × 412,728.78
  4. Step 4: Simplify right side
    1,086,700.07x = 672,746,879,578.05
  5. Step 5: Solve for x
    x = 672,746,879,578.05/1,086,700.07
  6. Step 6: Final answer
    x = 619,073.19

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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.