Home / 678,939.35-936,951.93-373,034.81

Finding the Fourth Proportional to 678,939.35, 936,951.93 and 373,034.81

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Solution

The fourth proportional to 678,939.35, 936,951.93 and 373,034.81 is: 514,796.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,939.35 : 936,951.93 = 373,034.81 : x
  2. Step 2: Convert to fraction form
    678,939.35/936,951.93 = 373,034.81/x
  3. Step 3: Cross multiply
    678,939.35x = 936,951.93 × 373,034.81
  4. Step 4: Simplify right side
    678,939.35x = 349,515,680,501.92
  5. Step 5: Solve for x
    x = 349,515,680,501.92/678,939.35
  6. Step 6: Final answer
    x = 514,796.62

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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.