Home / 716,116.24-988,220.67-393,826.33

Finding the Fourth Proportional to 716,116.24, 988,220.67 and 393,826.33

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Solution

The fourth proportional to 716,116.24, 988,220.67 and 393,826.33 is: 543,469.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,116.24 : 988,220.67 = 393,826.33 : x
  2. Step 2: Convert to fraction form
    716,116.24/988,220.67 = 393,826.33/x
  3. Step 3: Cross multiply
    716,116.24x = 988,220.67 × 393,826.33
  4. Step 4: Simplify right side
    716,116.24x = 389,187,314,755.14
  5. Step 5: Solve for x
    x = 389,187,314,755.14/716,116.24
  6. Step 6: Final answer
    x = 543,469.48

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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.