Home / 664,285.60-996,331.20-190,921.60

Finding the Fourth Proportional to 664,285.60, 996,331.20 and 190,921.60

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Solution

The fourth proportional to 664,285.60, 996,331.20 and 190,921.60 is: 286,354.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,285.60 : 996,331.20 = 190,921.60 : x
  2. Step 2: Convert to fraction form
    664,285.60/996,331.20 = 190,921.60/x
  3. Step 3: Cross multiply
    664,285.60x = 996,331.20 × 190,921.60
  4. Step 4: Simplify right side
    664,285.60x = 190,221,146,833.92
  5. Step 5: Solve for x
    x = 190,221,146,833.92/664,285.60
  6. Step 6: Final answer
    x = 286,354.46

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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.