Home / 678,247.83-936,079.34-406,327.19

Finding the Fourth Proportional to 678,247.83, 936,079.34 and 406,327.19

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Solution

The fourth proportional to 678,247.83, 936,079.34 and 406,327.19 is: 560,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,247.83 : 936,079.34 = 406,327.19 : x
  2. Step 2: Convert to fraction form
    678,247.83/936,079.34 = 406,327.19/x
  3. Step 3: Cross multiply
    678,247.83x = 936,079.34 × 406,327.19
  4. Step 4: Simplify right side
    678,247.83x = 380,354,481,127.22
  5. Step 5: Solve for x
    x = 380,354,481,127.22/678,247.83
  6. Step 6: Final answer
    x = 560,789.82

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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.