Home / 786,887.38-1,085,996.73-447,406.66

Finding the Fourth Proportional to 786,887.38, 1,085,996.73 and 447,406.66

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Solution

The fourth proportional to 786,887.38, 1,085,996.73 and 447,406.66 is: 617,473.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,887.38 : 1,085,996.73 = 447,406.66 : x
  2. Step 2: Convert to fraction form
    786,887.38/1,085,996.73 = 447,406.66/x
  3. Step 3: Cross multiply
    786,887.38x = 1,085,996.73 × 447,406.66
  4. Step 4: Simplify right side
    786,887.38x = 485,882,169,740.22
  5. Step 5: Solve for x
    x = 485,882,169,740.22/786,887.38
  6. Step 6: Final answer
    x = 617,473.58

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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.