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Finding the Fourth Proportional to 570,393.90, 855,546.30 and 149,658.84

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Solution

The fourth proportional to 570,393.90, 855,546.30 and 149,658.84 is: 224,476.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,393.90 : 855,546.30 = 149,658.84 : x
  2. Step 2: Convert to fraction form
    570,393.90/855,546.30 = 149,658.84/x
  3. Step 3: Cross multiply
    570,393.90x = 855,546.30 × 149,658.84
  4. Step 4: Simplify right side
    570,393.90x = 128,040,066,824.29
  5. Step 5: Solve for x
    x = 128,040,066,824.29/570,393.90
  6. Step 6: Final answer
    x = 224,476.57

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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.