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Finding the Fourth Proportional to 572,266.50, 858,552.84 and 198,289.50

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Solution

The fourth proportional to 572,266.50, 858,552.84 and 198,289.50 is: 297,487.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,266.50 : 858,552.84 = 198,289.50 : x
  2. Step 2: Convert to fraction form
    572,266.50/858,552.84 = 198,289.50/x
  3. Step 3: Cross multiply
    572,266.50x = 858,552.84 × 198,289.50
  4. Step 4: Simplify right side
    572,266.50x = 170,242,013,367.18
  5. Step 5: Solve for x
    x = 170,242,013,367.18/572,266.50
  6. Step 6: Final answer
    x = 297,487.30

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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.