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Finding the Fourth Proportional to 289,300.20, 433,367.10 and 200,653.80

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Solution

The fourth proportional to 289,300.20, 433,367.10 and 200,653.80 is: 300,576.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,300.20 : 433,367.10 = 200,653.80 : x
  2. Step 2: Convert to fraction form
    289,300.20/433,367.10 = 200,653.80/x
  3. Step 3: Cross multiply
    289,300.20x = 433,367.10 × 200,653.80
  4. Step 4: Simplify right side
    289,300.20x = 86,956,755,409.98
  5. Step 5: Solve for x
    x = 86,956,755,409.98/289,300.20
  6. Step 6: Final answer
    x = 300,576.20

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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.