Home / 516,939.50-775,409.56-161,981.30

Finding the Fourth Proportional to 516,939.50, 775,409.56 and 161,981.30

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Solution

The fourth proportional to 516,939.50, 775,409.56 and 161,981.30 is: 242,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,939.50 : 775,409.56 = 161,981.30 : x
  2. Step 2: Convert to fraction form
    516,939.50/775,409.56 = 161,981.30/x
  3. Step 3: Cross multiply
    516,939.50x = 775,409.56 × 161,981.30
  4. Step 4: Simplify right side
    516,939.50x = 125,601,850,094.80
  5. Step 5: Solve for x
    x = 125,601,850,094.80/516,939.50
  6. Step 6: Final answer
    x = 242,972.05

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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.