Home / 406,905.78-561,527.25-225,617.82

Finding the Fourth Proportional to 406,905.78, 561,527.25 and 225,617.82

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Solution

The fourth proportional to 406,905.78, 561,527.25 and 225,617.82 is: 311,351.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,905.78 : 561,527.25 = 225,617.82 : x
  2. Step 2: Convert to fraction form
    406,905.78/561,527.25 = 225,617.82/x
  3. Step 3: Cross multiply
    406,905.78x = 561,527.25 × 225,617.82
  4. Step 4: Simplify right side
    406,905.78x = 126,690,554,015.60
  5. Step 5: Solve for x
    x = 126,690,554,015.60/406,905.78
  6. Step 6: Final answer
    x = 311,351.08

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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.