Home / 664,419.36-996,787.77-215,140.74

Finding the Fourth Proportional to 664,419.36, 996,787.77 and 215,140.74

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Solution

The fourth proportional to 664,419.36, 996,787.77 and 215,140.74 is: 322,762.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,419.36 : 996,787.77 = 215,140.74 : x
  2. Step 2: Convert to fraction form
    664,419.36/996,787.77 = 215,140.74/x
  3. Step 3: Cross multiply
    664,419.36x = 996,787.77 × 215,140.74
  4. Step 4: Simplify right side
    664,419.36x = 214,449,658,460.75
  5. Step 5: Solve for x
    x = 214,449,658,460.75/664,419.36
  6. Step 6: Final answer
    x = 322,762.51

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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.