Home / 681,804.80-1,022,707.20-515,916.80

Finding the Fourth Proportional to 681,804.80, 1,022,707.20 and 515,916.80

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Solution

The fourth proportional to 681,804.80, 1,022,707.20 and 515,916.80 is: 773,875.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,804.80 : 1,022,707.20 = 515,916.80 : x
  2. Step 2: Convert to fraction form
    681,804.80/1,022,707.20 = 515,916.80/x
  3. Step 3: Cross multiply
    681,804.80x = 1,022,707.20 × 515,916.80
  4. Step 4: Simplify right side
    681,804.80x = 527,631,825,960.96
  5. Step 5: Solve for x
    x = 527,631,825,960.96/681,804.80
  6. Step 6: Final answer
    x = 773,875.20

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1.5x scale

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.