Home / 678,744.10-936,641.19-376,957.54

Finding the Fourth Proportional to 678,744.10, 936,641.19 and 376,957.54

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Solution

The fourth proportional to 678,744.10, 936,641.19 and 376,957.54 is: 520,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,744.10 : 936,641.19 = 376,957.54 : x
  2. Step 2: Convert to fraction form
    678,744.10/936,641.19 = 376,957.54/x
  3. Step 3: Cross multiply
    678,744.10x = 936,641.19 × 376,957.54
  4. Step 4: Simplify right side
    678,744.10x = 353,073,958,845.07
  5. Step 5: Solve for x
    x = 353,073,958,845.07/678,744.10
  6. Step 6: Final answer
    x = 520,187.15

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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.