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Finding the Fourth Proportional to 475,029.40, 711,939.30 and 194,229.40

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Solution

The fourth proportional to 475,029.40, 711,939.30 and 194,229.40 is: 291,096.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,029.40 : 711,939.30 = 194,229.40 : x
  2. Step 2: Convert to fraction form
    475,029.40/711,939.30 = 194,229.40/x
  3. Step 3: Cross multiply
    475,029.40x = 711,939.30 × 194,229.40
  4. Step 4: Simplify right side
    475,029.40x = 138,279,543,075.42
  5. Step 5: Solve for x
    x = 138,279,543,075.42/475,029.40
  6. Step 6: Final answer
    x = 291,096.81

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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.