Home / 1,212,062.20-1,672,658.72-668,217.45

Finding the Fourth Proportional to 1,212,062.20, 1,672,658.72 and 668,217.45

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Solution

The fourth proportional to 1,212,062.20, 1,672,658.72 and 668,217.45 is: 922,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,062.20 : 1,672,658.72 = 668,217.45 : x
  2. Step 2: Convert to fraction form
    1,212,062.20/1,672,658.72 = 668,217.45/x
  3. Step 3: Cross multiply
    1,212,062.20x = 1,672,658.72 × 668,217.45
  4. Step 4: Simplify right side
    1,212,062.20x = 1,117,699,753,794.59
  5. Step 5: Solve for x
    x = 1,117,699,753,794.59/1,212,062.20
  6. Step 6: Final answer
    x = 922,147.19

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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.