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Finding the Fourth Proportional to 534,413.40, 800,583.30 and 297,331.80

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Solution

The fourth proportional to 534,413.40, 800,583.30 and 297,331.80 is: 445,420.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,413.40 : 800,583.30 = 297,331.80 : x
  2. Step 2: Convert to fraction form
    534,413.40/800,583.30 = 297,331.80/x
  3. Step 3: Cross multiply
    534,413.40x = 800,583.30 × 297,331.80
  4. Step 4: Simplify right side
    534,413.40x = 238,038,873,638.94
  5. Step 5: Solve for x
    x = 238,038,873,638.94/534,413.40
  6. Step 6: Final answer
    x = 445,420.86

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1.5x scale

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.