Home / 406,904.28-561,525.18-225,616.32

Finding the Fourth Proportional to 406,904.28, 561,525.18 and 225,616.32

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Solution

The fourth proportional to 406,904.28, 561,525.18 and 225,616.32 is: 311,349.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,904.28 : 561,525.18 = 225,616.32 : x
  2. Step 2: Convert to fraction form
    406,904.28/561,525.18 = 225,616.32/x
  3. Step 3: Cross multiply
    406,904.28x = 561,525.18 × 225,616.32
  4. Step 4: Simplify right side
    406,904.28x = 126,689,244,698.94
  5. Step 5: Solve for x
    x = 126,689,244,698.94/406,904.28
  6. Step 6: Final answer
    x = 311,349.01

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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.