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Finding the Fourth Proportional to 541,520.64, 812,805.84 and 261,234.72

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Solution

The fourth proportional to 541,520.64, 812,805.84 and 261,234.72 is: 392,105.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,520.64 : 812,805.84 = 261,234.72 : x
  2. Step 2: Convert to fraction form
    541,520.64/812,805.84 = 261,234.72/x
  3. Step 3: Cross multiply
    541,520.64x = 812,805.84 × 261,234.72
  4. Step 4: Simplify right side
    541,520.64x = 212,333,106,026.77
  5. Step 5: Solve for x
    x = 212,333,106,026.77/541,520.64
  6. Step 6: Final answer
    x = 392,105.29

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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.