Home / 1,211,408.28-1,671,816.60-667,543.14

Finding the Fourth Proportional to 1,211,408.28, 1,671,816.60 and 667,543.14

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Solution

The fourth proportional to 1,211,408.28, 1,671,816.60 and 667,543.14 is: 921,249.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,408.28 : 1,671,816.60 = 667,543.14 : x
  2. Step 2: Convert to fraction form
    1,211,408.28/1,671,816.60 = 667,543.14/x
  3. Step 3: Cross multiply
    1,211,408.28x = 1,671,816.60 × 667,543.14
  4. Step 4: Simplify right side
    1,211,408.28x = 1,116,009,702,668.12
  5. Step 5: Solve for x
    x = 1,116,009,702,668.12/1,211,408.28
  6. Step 6: Final answer
    x = 921,249.86

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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.