Home / 786,885.88-1,085,994.66-447,405.16

Finding the Fourth Proportional to 786,885.88, 1,085,994.66 and 447,405.16

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Solution

The fourth proportional to 786,885.88, 1,085,994.66 and 447,405.16 is: 617,471.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,885.88 : 1,085,994.66 = 447,405.16 : x
  2. Step 2: Convert to fraction form
    786,885.88/1,085,994.66 = 447,405.16/x
  3. Step 3: Cross multiply
    786,885.88x = 1,085,994.66 × 447,405.16
  4. Step 4: Simplify right side
    786,885.88x = 485,879,614,616.45
  5. Step 5: Solve for x
    x = 485,879,614,616.45/786,885.88
  6. Step 6: Final answer
    x = 617,471.51

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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.