Home / 406,983.08-561,630.71-225,695.36

Finding the Fourth Proportional to 406,983.08, 561,630.71 and 225,695.36

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Solution

The fourth proportional to 406,983.08, 561,630.71 and 225,695.36 is: 311,456.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,983.08 : 561,630.71 = 225,695.36 : x
  2. Step 2: Convert to fraction form
    406,983.08/561,630.71 = 225,695.36/x
  3. Step 3: Cross multiply
    406,983.08x = 561,630.71 × 225,695.36
  4. Step 4: Simplify right side
    406,983.08x = 126,757,447,248.82
  5. Step 5: Solve for x
    x = 126,757,447,248.82/406,983.08
  6. Step 6: Final answer
    x = 311,456.31

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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.