Home / 439,663.20-606,542.64-258,293.28

Finding the Fourth Proportional to 439,663.20, 606,542.64 and 258,293.28

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Solution

The fourth proportional to 439,663.20, 606,542.64 and 258,293.28 is: 356,331.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,663.20 : 606,542.64 = 258,293.28 : x
  2. Step 2: Convert to fraction form
    439,663.20/606,542.64 = 258,293.28/x
  3. Step 3: Cross multiply
    439,663.20x = 606,542.64 × 258,293.28
  4. Step 4: Simplify right side
    439,663.20x = 156,665,887,945.46
  5. Step 5: Solve for x
    x = 156,665,887,945.46/439,663.20
  6. Step 6: Final answer
    x = 356,331.59

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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.