Home / 1,203,288.57-1,660,327.77-686,806.65

Finding the Fourth Proportional to 1,203,288.57, 1,660,327.77 and 686,806.65

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Solution

The fourth proportional to 1,203,288.57, 1,660,327.77 and 686,806.65 is: 947,673.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,288.57 : 1,660,327.77 = 686,806.65 : x
  2. Step 2: Convert to fraction form
    1,203,288.57/1,660,327.77 = 686,806.65/x
  3. Step 3: Cross multiply
    1,203,288.57x = 1,660,327.77 × 686,806.65
  4. Step 4: Simplify right side
    1,203,288.57x = 1,140,324,153,615.67
  5. Step 5: Solve for x
    x = 1,140,324,153,615.67/1,203,288.57
  6. Step 6: Final answer
    x = 947,673.05

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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.