Home / 712,016.24-982,388.10-405,981.01

Finding the Fourth Proportional to 712,016.24, 982,388.10 and 405,981.01

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Solution

The fourth proportional to 712,016.24, 982,388.10 and 405,981.01 is: 560,143.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,016.24 : 982,388.10 = 405,981.01 : x
  2. Step 2: Convert to fraction form
    712,016.24/982,388.10 = 405,981.01/x
  3. Step 3: Cross multiply
    712,016.24x = 982,388.10 × 405,981.01
  4. Step 4: Simplify right side
    712,016.24x = 398,830,913,516.75
  5. Step 5: Solve for x
    x = 398,830,913,516.75/712,016.24
  6. Step 6: Final answer
    x = 560,143.00

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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.