Home / 447,003.09-616,871.95-243,055.37

Finding the Fourth Proportional to 447,003.09, 616,871.95 and 243,055.37

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Solution

The fourth proportional to 447,003.09, 616,871.95 and 243,055.37 is: 335,420.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,003.09 : 616,871.95 = 243,055.37 : x
  2. Step 2: Convert to fraction form
    447,003.09/616,871.95 = 243,055.37/x
  3. Step 3: Cross multiply
    447,003.09x = 616,871.95 × 243,055.37
  4. Step 4: Simplify right side
    447,003.09x = 149,934,040,984.41
  5. Step 5: Solve for x
    x = 149,934,040,984.41/447,003.09
  6. Step 6: Final answer
    x = 335,420.59

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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.