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Finding the Fourth Proportional to 524,402.20, 786,769.86 and 220,956.76

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Solution

The fourth proportional to 524,402.20, 786,769.86 and 220,956.76 is: 331,505.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,402.20 : 786,769.86 = 220,956.76 : x
  2. Step 2: Convert to fraction form
    524,402.20/786,769.86 = 220,956.76/x
  3. Step 3: Cross multiply
    524,402.20x = 786,769.86 × 220,956.76
  4. Step 4: Simplify right side
    524,402.20x = 173,842,119,131.25
  5. Step 5: Solve for x
    x = 173,842,119,131.25/524,402.20
  6. Step 6: Final answer
    x = 331,505.32

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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.