Home / 406,917.07-561,552.28-225,636.64

Finding the Fourth Proportional to 406,917.07, 561,552.28 and 225,636.64

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Solution

The fourth proportional to 406,917.07, 561,552.28 and 225,636.64 is: 311,382.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,917.07 : 561,552.28 = 225,636.64 : x
  2. Step 2: Convert to fraction form
    406,917.07/561,552.28 = 225,636.64/x
  3. Step 3: Cross multiply
    406,917.07x = 561,552.28 × 225,636.64
  4. Step 4: Simplify right side
    406,917.07x = 126,706,767,675.57
  5. Step 5: Solve for x
    x = 126,706,767,675.57/406,917.07
  6. Step 6: Final answer
    x = 311,382.29

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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.