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Finding the Fourth Proportional to 651,162, 981,179.82 and 535,425.84

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Solution

The fourth proportional to 651,162, 981,179.82 and 535,425.84 is: 806,786.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,162 : 981,179.82 = 535,425.84 : x
  2. Step 2: Convert to fraction form
    651,162/981,179.82 = 535,425.84/x
  3. Step 3: Cross multiply
    651,162x = 981,179.82 × 535,425.84
  4. Step 4: Simplify right side
    651,162x = 525,349,029,314.55
  5. Step 5: Solve for x
    x = 525,349,029,314.55/651,162
  6. Step 6: Final answer
    x = 806,786.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.