Home / 665,285.60-997,831.20-191,921.60

Finding the Fourth Proportional to 665,285.60, 997,831.20 and 191,921.60

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Solution

The fourth proportional to 665,285.60, 997,831.20 and 191,921.60 is: 287,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,285.60 : 997,831.20 = 191,921.60 : x
  2. Step 2: Convert to fraction form
    665,285.60/997,831.20 = 191,921.60/x
  3. Step 3: Cross multiply
    665,285.60x = 997,831.20 × 191,921.60
  4. Step 4: Simplify right side
    665,285.60x = 191,505,360,433.92
  5. Step 5: Solve for x
    x = 191,505,360,433.92/665,285.60
  6. Step 6: Final answer
    x = 287,854.36

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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.