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Finding the Fourth Proportional to 406,825.94, 561,452.94 and 225,594.69

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Solution

The fourth proportional to 406,825.94, 561,452.94 and 225,594.69 is: 311,339.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,825.94 : 561,452.94 = 225,594.69 : x
  2. Step 2: Convert to fraction form
    406,825.94/561,452.94 = 225,594.69/x
  3. Step 3: Cross multiply
    406,825.94x = 561,452.94 × 225,594.69
  4. Step 4: Simplify right side
    406,825.94x = 126,660,801,948.89
  5. Step 5: Solve for x
    x = 126,660,801,948.89/406,825.94
  6. Step 6: Final answer
    x = 311,339.05

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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.