Home / 319,238.20-478,857.30-177,520.60

Finding the Fourth Proportional to 319,238.20, 478,857.30 and 177,520.60

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Solution

The fourth proportional to 319,238.20, 478,857.30 and 177,520.60 is: 266,280.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,238.20 : 478,857.30 = 177,520.60 : x
  2. Step 2: Convert to fraction form
    319,238.20/478,857.30 = 177,520.60/x
  3. Step 3: Cross multiply
    319,238.20x = 478,857.30 × 177,520.60
  4. Step 4: Simplify right side
    319,238.20x = 85,007,035,210.38
  5. Step 5: Solve for x
    x = 85,007,035,210.38/319,238.20
  6. Step 6: Final answer
    x = 266,280.90

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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.