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Finding the Fourth Proportional to 570,482.70, 855,657.36 and 149,791.38

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Solution

The fourth proportional to 570,482.70, 855,657.36 and 149,791.38 is: 224,669.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,482.70 : 855,657.36 = 149,791.38 : x
  2. Step 2: Convert to fraction form
    570,482.70/855,657.36 = 149,791.38/x
  3. Step 3: Cross multiply
    570,482.70x = 855,657.36 × 149,791.38
  4. Step 4: Simplify right side
    570,482.70x = 128,170,096,761.56
  5. Step 5: Solve for x
    x = 128,170,096,761.56/570,482.70
  6. Step 6: Final answer
    x = 224,669.56

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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.