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Finding the Fourth Proportional to 406,647.99, 561,175.38 and 225,362.82

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Solution

The fourth proportional to 406,647.99, 561,175.38 and 225,362.82 is: 311,001.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,647.99 : 561,175.38 = 225,362.82 : x
  2. Step 2: Convert to fraction form
    406,647.99/561,175.38 = 225,362.82/x
  3. Step 3: Cross multiply
    406,647.99x = 561,175.38 × 225,362.82
  4. Step 4: Simplify right side
    406,647.99x = 126,468,066,151.37
  5. Step 5: Solve for x
    x = 126,468,066,151.37/406,647.99
  6. Step 6: Final answer
    x = 311,001.33

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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.