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Finding the Fourth Proportional to 406,675.54, 561,196.96 and 225,390.55

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Solution

The fourth proportional to 406,675.54, 561,196.96 and 225,390.55 is: 311,030.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,675.54 : 561,196.96 = 225,390.55 : x
  2. Step 2: Convert to fraction form
    406,675.54/561,196.96 = 225,390.55/x
  3. Step 3: Cross multiply
    406,675.54x = 561,196.96 × 225,390.55
  4. Step 4: Simplify right side
    406,675.54x = 126,488,490,558.50
  5. Step 5: Solve for x
    x = 126,488,490,558.50/406,675.54
  6. Step 6: Final answer
    x = 311,030.49

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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.