Home / 783,011.82-1,080,632.15-438,906.20

Finding the Fourth Proportional to 783,011.82, 1,080,632.15 and 438,906.20

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Solution

The fourth proportional to 783,011.82, 1,080,632.15 and 438,906.20 is: 605,733.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,011.82 : 1,080,632.15 = 438,906.20 : x
  2. Step 2: Convert to fraction form
    783,011.82/1,080,632.15 = 438,906.20/x
  3. Step 3: Cross multiply
    783,011.82x = 1,080,632.15 × 438,906.20
  4. Step 4: Simplify right side
    783,011.82x = 474,296,150,554.33
  5. Step 5: Solve for x
    x = 474,296,150,554.33/783,011.82
  6. Step 6: Final answer
    x = 605,733.07

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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.