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Finding the Fourth Proportional to 572,281.76, 858,413.90 and 193,468.60

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Solution

The fourth proportional to 572,281.76, 858,413.90 and 193,468.60 is: 290,199.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,281.76 : 858,413.90 = 193,468.60 : x
  2. Step 2: Convert to fraction form
    572,281.76/858,413.90 = 193,468.60/x
  3. Step 3: Cross multiply
    572,281.76x = 858,413.90 × 193,468.60
  4. Step 4: Simplify right side
    572,281.76x = 166,076,135,453.54
  5. Step 5: Solve for x
    x = 166,076,135,453.54/572,281.76
  6. Step 6: Final answer
    x = 290,199.95

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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.