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Finding the Fourth Proportional to 626,602.74, 940,057.20 and 200,138.66

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Solution

The fourth proportional to 626,602.74, 940,057.20 and 200,138.66 is: 300,256.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,602.74 : 940,057.20 = 200,138.66 : x
  2. Step 2: Convert to fraction form
    626,602.74/940,057.20 = 200,138.66/x
  3. Step 3: Cross multiply
    626,602.74x = 940,057.20 × 200,138.66
  4. Step 4: Simplify right side
    626,602.74x = 188,141,783,631.07
  5. Step 5: Solve for x
    x = 188,141,783,631.07/626,602.74
  6. Step 6: Final answer
    x = 300,256.88

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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.