Home / 905,443.06-1,247,929.78-663,210.94

Finding the Fourth Proportional to 905,443.06, 1,247,929.78 and 663,210.94

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Solution

The fourth proportional to 905,443.06, 1,247,929.78 and 663,210.94 is: 914,072.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,443.06 : 1,247,929.78 = 663,210.94 : x
  2. Step 2: Convert to fraction form
    905,443.06/1,247,929.78 = 663,210.94/x
  3. Step 3: Cross multiply
    905,443.06x = 1,247,929.78 × 663,210.94
  4. Step 4: Simplify right side
    905,443.06x = 827,640,672,892.09
  5. Step 5: Solve for x
    x = 827,640,672,892.09/905,443.06
  6. Step 6: Final answer
    x = 914,072.58

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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.