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Finding the Fourth Proportional to 200,921.40, 300,944.70 and 200,921.40

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Solution

The fourth proportional to 200,921.40, 300,944.70 and 200,921.40 is: 300,944.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,921.40 : 300,944.70 = 200,921.40 : x
  2. Step 2: Convert to fraction form
    200,921.40/300,944.70 = 200,921.40/x
  3. Step 3: Cross multiply
    200,921.40x = 300,944.70 × 200,921.40
  4. Step 4: Simplify right side
    200,921.40x = 60,466,230,446.58
  5. Step 5: Solve for x
    x = 60,466,230,446.58/200,921.40
  6. Step 6: Final answer
    x = 300,944.70

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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.