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Finding the Fourth Proportional to 311,426.79, 467,430.79 and 159,737.76

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Solution

The fourth proportional to 311,426.79, 467,430.79 and 159,737.76 is: 239,755.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,426.79 : 467,430.79 = 159,737.76 : x
  2. Step 2: Convert to fraction form
    311,426.79/467,430.79 = 159,737.76/x
  3. Step 3: Cross multiply
    311,426.79x = 467,430.79 × 159,737.76
  4. Step 4: Simplify right side
    311,426.79x = 74,666,347,378.68
  5. Step 5: Solve for x
    x = 74,666,347,378.68/311,426.79
  6. Step 6: Final answer
    x = 239,755.69

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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.