Home / 678,938.84-936,951.24-373,034.31

Finding the Fourth Proportional to 678,938.84, 936,951.24 and 373,034.31

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Solution

The fourth proportional to 678,938.84, 936,951.24 and 373,034.31 is: 514,795.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,938.84 : 936,951.24 = 373,034.31 : x
  2. Step 2: Convert to fraction form
    678,938.84/936,951.24 = 373,034.31/x
  3. Step 3: Cross multiply
    678,938.84x = 936,951.24 × 373,034.31
  4. Step 4: Simplify right side
    678,938.84x = 349,514,959,317.04
  5. Step 5: Solve for x
    x = 349,514,959,317.04/678,938.84
  6. Step 6: Final answer
    x = 514,795.94

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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.