Home / 678,424.82-936,244.07-372,520.92

Finding the Fourth Proportional to 678,424.82, 936,244.07 and 372,520.92

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Solution

The fourth proportional to 678,424.82, 936,244.07 and 372,520.92 is: 514,088.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,424.82 : 936,244.07 = 372,520.92 : x
  2. Step 2: Convert to fraction form
    678,424.82/936,244.07 = 372,520.92/x
  3. Step 3: Cross multiply
    678,424.82x = 936,244.07 × 372,520.92
  4. Step 4: Simplify right side
    678,424.82x = 348,770,505,346.21
  5. Step 5: Solve for x
    x = 348,770,505,346.21/678,424.82
  6. Step 6: Final answer
    x = 514,088.66

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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.