Home / 714,457.56-985,897.26-392,116.44

Finding the Fourth Proportional to 714,457.56, 985,897.26 and 392,116.44

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Solution

The fourth proportional to 714,457.56, 985,897.26 and 392,116.44 is: 541,090.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    714,457.56 : 985,897.26 = 392,116.44 : x
  2. Step 2: Convert to fraction form
    714,457.56/985,897.26 = 392,116.44/x
  3. Step 3: Cross multiply
    714,457.56x = 985,897.26 × 392,116.44
  4. Step 4: Simplify right side
    714,457.56x = 386,586,523,796.95
  5. Step 5: Solve for x
    x = 386,586,523,796.95/714,457.56
  6. Step 6: Final answer
    x = 541,090.96

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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.