Home / 406,930.09-561,570.27-225,649.66

Finding the Fourth Proportional to 406,930.09, 561,570.27 and 225,649.66

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Solution

The fourth proportional to 406,930.09, 561,570.27 and 225,649.66 is: 311,400.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,930.09 : 561,570.27 = 225,649.66 : x
  2. Step 2: Convert to fraction form
    406,930.09/561,570.27 = 225,649.66/x
  3. Step 3: Cross multiply
    406,930.09x = 561,570.27 × 225,649.66
  4. Step 4: Simplify right side
    406,930.09x = 126,718,140,491.61
  5. Step 5: Solve for x
    x = 126,718,140,491.61/406,930.09
  6. Step 6: Final answer
    x = 311,400.27

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1.5x scale

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.