Home / 406,905.28-561,526.56-225,617.32

Finding the Fourth Proportional to 406,905.28, 561,526.56 and 225,617.32

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Solution

The fourth proportional to 406,905.28, 561,526.56 and 225,617.32 is: 311,350.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,905.28 : 561,526.56 = 225,617.32 : x
  2. Step 2: Convert to fraction form
    406,905.28/561,526.56 = 225,617.32/x
  3. Step 3: Cross multiply
    406,905.28x = 561,526.56 × 225,617.32
  4. Step 4: Simplify right side
    406,905.28x = 126,690,117,576.02
  5. Step 5: Solve for x
    x = 126,690,117,576.02/406,905.28
  6. Step 6: Final answer
    x = 311,350.39

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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.