Home / 816,780.74-1,126,992.23-477,183.38

Finding the Fourth Proportional to 816,780.74, 1,126,992.23 and 477,183.38

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Solution

The fourth proportional to 816,780.74, 1,126,992.23 and 477,183.38 is: 658,416.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,780.74 : 1,126,992.23 = 477,183.38 : x
  2. Step 2: Convert to fraction form
    816,780.74/1,126,992.23 = 477,183.38/x
  3. Step 3: Cross multiply
    816,780.74x = 1,126,992.23 × 477,183.38
  4. Step 4: Simplify right side
    816,780.74x = 537,781,953,524.26
  5. Step 5: Solve for x
    x = 537,781,953,524.26/816,780.74
  6. Step 6: Final answer
    x = 658,416.55

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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.