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Finding the Fourth Proportional to 572,874.56, 859,706.24 and 198,897.60

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Solution

The fourth proportional to 572,874.56, 859,706.24 and 198,897.60 is: 298,483.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,874.56 : 859,706.24 = 198,897.60 : x
  2. Step 2: Convert to fraction form
    572,874.56/859,706.24 = 198,897.60/x
  3. Step 3: Cross multiply
    572,874.56x = 859,706.24 × 198,897.60
  4. Step 4: Simplify right side
    572,874.56x = 170,993,507,841.02
  5. Step 5: Solve for x
    x = 170,993,507,841.02/572,874.56
  6. Step 6: Final answer
    x = 298,483.33

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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.