Home / 777,535.18-1,072,993.77-438,112.78

Finding the Fourth Proportional to 777,535.18, 1,072,993.77 and 438,112.78

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Solution

The fourth proportional to 777,535.18, 1,072,993.77 and 438,112.78 is: 604,592.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,535.18 : 1,072,993.77 = 438,112.78 : x
  2. Step 2: Convert to fraction form
    777,535.18/1,072,993.77 = 438,112.78/x
  3. Step 3: Cross multiply
    777,535.18x = 1,072,993.77 × 438,112.78
  4. Step 4: Simplify right side
    777,535.18x = 470,092,283,497.38
  5. Step 5: Solve for x
    x = 470,092,283,497.38/777,535.18
  6. Step 6: Final answer
    x = 604,592.94

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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.