Home / 714,457.06-985,896.57-392,115.94

Finding the Fourth Proportional to 714,457.06, 985,896.57 and 392,115.94

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Solution

The fourth proportional to 714,457.06, 985,896.57 and 392,115.94 is: 541,090.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,457.06 : 985,896.57 = 392,115.94 : x
  2. Step 2: Convert to fraction form
    714,457.06/985,896.57 = 392,115.94/x
  3. Step 3: Cross multiply
    714,457.06x = 985,896.57 × 392,115.94
  4. Step 4: Simplify right side
    714,457.06x = 386,585,760,288.33
  5. Step 5: Solve for x
    x = 386,585,760,288.33/714,457.06
  6. Step 6: Final answer
    x = 541,090.27

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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.