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Finding the Fourth Proportional to 541,609.70, 810,859.35 and 331,657.70

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Solution

The fourth proportional to 541,609.70, 810,859.35 and 331,657.70 is: 496,534.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,609.70 : 810,859.35 = 331,657.70 : x
  2. Step 2: Convert to fraction form
    541,609.70/810,859.35 = 331,657.70/x
  3. Step 3: Cross multiply
    541,609.70x = 810,859.35 × 331,657.70
  4. Step 4: Simplify right side
    541,609.70x = 268,927,747,044.50
  5. Step 5: Solve for x
    x = 268,927,747,044.50/541,609.70
  6. Step 6: Final answer
    x = 496,534.21

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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.