Home / 678,536.59-936,381.33-372,632.69

Finding the Fourth Proportional to 678,536.59, 936,381.33 and 372,632.69

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Solution

The fourth proportional to 678,536.59, 936,381.33 and 372,632.69 is: 514,233.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,536.59 : 936,381.33 = 372,632.69 : x
  2. Step 2: Convert to fraction form
    678,536.59/936,381.33 = 372,632.69/x
  3. Step 3: Cross multiply
    678,536.59x = 936,381.33 × 372,632.69
  4. Step 4: Simplify right side
    678,536.59x = 348,926,293,863.68
  5. Step 5: Solve for x
    x = 348,926,293,863.68/678,536.59
  6. Step 6: Final answer
    x = 514,233.57

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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.