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Finding the Fourth Proportional to 579,846.12, 869,560.71 and 200,663.88

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Solution

The fourth proportional to 579,846.12, 869,560.71 and 200,663.88 is: 300,923.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,846.12 : 869,560.71 = 200,663.88 : x
  2. Step 2: Convert to fraction form
    579,846.12/869,560.71 = 200,663.88/x
  3. Step 3: Cross multiply
    579,846.12x = 869,560.71 × 200,663.88
  4. Step 4: Simplify right side
    579,846.12x = 174,489,425,964.16
  5. Step 5: Solve for x
    x = 174,489,425,964.16/579,846.12
  6. Step 6: Final answer
    x = 300,923.68

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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.