Home / 1,779,072.39-2,668,613.99-431,229.69

Finding the Fourth Proportional to 1,779,072.39, 2,668,613.99 and 431,229.69

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Solution

The fourth proportional to 1,779,072.39, 2,668,613.99 and 431,229.69 is: 646,845.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779,072.39 : 2,668,613.99 = 431,229.69 : x
  2. Step 2: Convert to fraction form
    1,779,072.39/2,668,613.99 = 431,229.69/x
  3. Step 3: Cross multiply
    1,779,072.39x = 2,668,613.99 × 431,229.69
  4. Step 4: Simplify right side
    1,779,072.39x = 1,150,785,581,481.21
  5. Step 5: Solve for x
    x = 1,150,785,581,481.21/1,779,072.39
  6. Step 6: Final answer
    x = 646,845.84

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.