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Finding the Fourth Proportional to 406,600.34, 561,111.77 and 225,315.30

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Solution

The fourth proportional to 406,600.34, 561,111.77 and 225,315.30 is: 310,936.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,600.34 : 561,111.77 = 225,315.30 : x
  2. Step 2: Convert to fraction form
    406,600.34/561,111.77 = 225,315.30/x
  3. Step 3: Cross multiply
    406,600.34x = 561,111.77 × 225,315.30
  4. Step 4: Simplify right side
    406,600.34x = 126,427,066,302.29
  5. Step 5: Solve for x
    x = 126,427,066,302.29/406,600.34
  6. Step 6: Final answer
    x = 310,936.94

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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.