Home / 1,212,099.39-1,672,708.77-668,255.13

Finding the Fourth Proportional to 1,212,099.39, 1,672,708.77 and 668,255.13

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Solution

The fourth proportional to 1,212,099.39, 1,672,708.77 and 668,255.13 is: 922,198.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,099.39 : 1,672,708.77 = 668,255.13 : x
  2. Step 2: Convert to fraction form
    1,212,099.39/1,672,708.77 = 668,255.13/x
  3. Step 3: Cross multiply
    1,212,099.39x = 1,672,708.77 × 668,255.13
  4. Step 4: Simplify right side
    1,212,099.39x = 1,117,796,216,548.49
  5. Step 5: Solve for x
    x = 1,117,796,216,548.49/1,212,099.39
  6. Step 6: Final answer
    x = 922,198.48

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Double scale
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1.5x scale

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.