Home / 881,701.88-1,214,588.94-639,272.12

Finding the Fourth Proportional to 881,701.88, 1,214,588.94 and 639,272.12

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Solution

The fourth proportional to 881,701.88, 1,214,588.94 and 639,272.12 is: 880,629.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,701.88 : 1,214,588.94 = 639,272.12 : x
  2. Step 2: Convert to fraction form
    881,701.88/1,214,588.94 = 639,272.12/x
  3. Step 3: Cross multiply
    881,701.88x = 1,214,588.94 × 639,272.12
  4. Step 4: Simplify right side
    881,701.88x = 776,452,846,602.35
  5. Step 5: Solve for x
    x = 776,452,846,602.35/881,701.88
  6. Step 6: Final answer
    x = 880,629.68

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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.