Home / 783,911.54-1,080,638.07-611,634.26

Finding the Fourth Proportional to 783,911.54, 1,080,638.07 and 611,634.26

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Solution

The fourth proportional to 783,911.54, 1,080,638.07 and 611,634.26 is: 843,150.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,911.54 : 1,080,638.07 = 611,634.26 : x
  2. Step 2: Convert to fraction form
    783,911.54/1,080,638.07 = 611,634.26/x
  3. Step 3: Cross multiply
    783,911.54x = 1,080,638.07 × 611,634.26
  4. Step 4: Simplify right side
    783,911.54x = 660,955,266,272.28
  5. Step 5: Solve for x
    x = 660,955,266,272.28/783,911.54
  6. Step 6: Final answer
    x = 843,150.32

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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.