Home / 786,883.88-1,085,991.90-447,403.16

Finding the Fourth Proportional to 786,883.88, 1,085,991.90 and 447,403.16

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Solution

The fourth proportional to 786,883.88, 1,085,991.90 and 447,403.16 is: 617,468.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,883.88 : 1,085,991.90 = 447,403.16 : x
  2. Step 2: Convert to fraction form
    786,883.88/1,085,991.90 = 447,403.16/x
  3. Step 3: Cross multiply
    786,883.88x = 1,085,991.90 × 447,403.16
  4. Step 4: Simplify right side
    786,883.88x = 485,876,207,794.40
  5. Step 5: Solve for x
    x = 485,876,207,794.40/786,883.88
  6. Step 6: Final answer
    x = 617,468.75

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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.