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Finding the Fourth Proportional to 572,262, 858,546.09 and 198,285

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Solution

The fourth proportional to 572,262, 858,546.09 and 198,285 is: 297,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,262 : 858,546.09 = 198,285 : x
  2. Step 2: Convert to fraction form
    572,262/858,546.09 = 198,285/x
  3. Step 3: Cross multiply
    572,262x = 858,546.09 × 198,285
  4. Step 4: Simplify right side
    572,262x = 170,236,811,455.65
  5. Step 5: Solve for x
    x = 170,236,811,455.65/572,262
  6. Step 6: Final answer
    x = 297,480.54

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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.