Home / 406,529.25-561,205.38-285,774.05

Finding the Fourth Proportional to 406,529.25, 561,205.38 and 285,774.05

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Solution

The fourth proportional to 406,529.25, 561,205.38 and 285,774.05 is: 394,505.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,529.25 : 561,205.38 = 285,774.05 : x
  2. Step 2: Convert to fraction form
    406,529.25/561,205.38 = 285,774.05/x
  3. Step 3: Cross multiply
    406,529.25x = 561,205.38 × 285,774.05
  4. Step 4: Simplify right side
    406,529.25x = 160,377,934,324.39
  5. Step 5: Solve for x
    x = 160,377,934,324.39/406,529.25
  6. Step 6: Final answer
    x = 394,505.28

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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.