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Finding the Fourth Proportional to 827,462.40, 1,241,193.60 and 768,413.40

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Solution

The fourth proportional to 827,462.40, 1,241,193.60 and 768,413.40 is: 1,152,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,462.40 : 1,241,193.60 = 768,413.40 : x
  2. Step 2: Convert to fraction form
    827,462.40/1,241,193.60 = 768,413.40/x
  3. Step 3: Cross multiply
    827,462.40x = 1,241,193.60 × 768,413.40
  4. Step 4: Simplify right side
    827,462.40x = 953,749,794,234.24
  5. Step 5: Solve for x
    x = 953,749,794,234.24/827,462.40
  6. Step 6: Final answer
    x = 1,152,620.10

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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.