Home / 712,024.12-982,398.97-405,988.88

Finding the Fourth Proportional to 712,024.12, 982,398.97 and 405,988.88

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Solution

The fourth proportional to 712,024.12, 982,398.97 and 405,988.88 is: 560,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,024.12 : 982,398.97 = 405,988.88 : x
  2. Step 2: Convert to fraction form
    712,024.12/982,398.97 = 405,988.88/x
  3. Step 3: Cross multiply
    712,024.12x = 982,398.97 × 405,988.88
  4. Step 4: Simplify right side
    712,024.12x = 398,843,057,543.45
  5. Step 5: Solve for x
    x = 398,843,057,543.45/712,024.12
  6. Step 6: Final answer
    x = 560,153.86

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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.