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Finding the Fourth Proportional to 524,861.20, 786,754.20 and 258,211.60

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Solution

The fourth proportional to 524,861.20, 786,754.20 and 258,211.60 is: 387,052.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,861.20 : 786,754.20 = 258,211.60 : x
  2. Step 2: Convert to fraction form
    524,861.20/786,754.20 = 258,211.60/x
  3. Step 3: Cross multiply
    524,861.20x = 786,754.20 × 258,211.60
  4. Step 4: Simplify right side
    524,861.20x = 203,149,060,788.72
  5. Step 5: Solve for x
    x = 203,149,060,788.72/524,861.20
  6. Step 6: Final answer
    x = 387,052.92

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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.