Home / 406,719.67-561,207.21-253,733.56

Finding the Fourth Proportional to 406,719.67, 561,207.21 and 253,733.56

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Solution

The fourth proportional to 406,719.67, 561,207.21 and 253,733.56 is: 350,111.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,719.67 : 561,207.21 = 253,733.56 : x
  2. Step 2: Convert to fraction form
    406,719.67/561,207.21 = 253,733.56/x
  3. Step 3: Cross multiply
    406,719.67x = 561,207.21 × 253,733.56
  4. Step 4: Simplify right side
    406,719.67x = 142,397,103,290.97
  5. Step 5: Solve for x
    x = 142,397,103,290.97/406,719.67
  6. Step 6: Final answer
    x = 350,111.18

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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.