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Finding the Fourth Proportional to 526,688.56, 726,832.67 and 297,255.50

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Solution

The fourth proportional to 526,688.56, 726,832.67 and 297,255.50 is: 410,213.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,688.56 : 726,832.67 = 297,255.50 : x
  2. Step 2: Convert to fraction form
    526,688.56/726,832.67 = 297,255.50/x
  3. Step 3: Cross multiply
    526,688.56x = 726,832.67 × 297,255.50
  4. Step 4: Simplify right side
    526,688.56x = 216,055,008,737.19
  5. Step 5: Solve for x
    x = 216,055,008,737.19/526,688.56
  6. Step 6: Final answer
    x = 410,213.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.