Home / 816,408.48-1,126,666.80-494,176.80

Finding the Fourth Proportional to 816,408.48, 1,126,666.80 and 494,176.80

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Solution

The fourth proportional to 816,408.48, 1,126,666.80 and 494,176.80 is: 681,977.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,408.48 : 1,126,666.80 = 494,176.80 : x
  2. Step 2: Convert to fraction form
    816,408.48/1,126,666.80 = 494,176.80/x
  3. Step 3: Cross multiply
    816,408.48x = 1,126,666.80 × 494,176.80
  4. Step 4: Simplify right side
    816,408.48x = 556,772,593,890.24
  5. Step 5: Solve for x
    x = 556,772,593,890.24/816,408.48
  6. Step 6: Final answer
    x = 681,977.97

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Double scale
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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.