Home / 913,578.48-1,368,790.65-605,640.78

Finding the Fourth Proportional to 913,578.48, 1,368,790.65 and 605,640.78

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Solution

The fourth proportional to 913,578.48, 1,368,790.65 and 605,640.78 is: 907,415.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,578.48 : 1,368,790.65 = 605,640.78 : x
  2. Step 2: Convert to fraction form
    913,578.48/1,368,790.65 = 605,640.78/x
  3. Step 3: Cross multiply
    913,578.48x = 1,368,790.65 × 605,640.78
  4. Step 4: Simplify right side
    913,578.48x = 828,995,436,922.71
  5. Step 5: Solve for x
    x = 828,995,436,922.71/913,578.48
  6. Step 6: Final answer
    x = 907,415.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.