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Finding the Fourth Proportional to 668,034.40, 999,718.80 and 467,413.60

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Solution

The fourth proportional to 668,034.40, 999,718.80 and 467,413.60 is: 699,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,034.40 : 999,718.80 = 467,413.60 : x
  2. Step 2: Convert to fraction form
    668,034.40/999,718.80 = 467,413.60/x
  3. Step 3: Cross multiply
    668,034.40x = 999,718.80 × 467,413.60
  4. Step 4: Simplify right side
    668,034.40x = 467,282,163,295.68
  5. Step 5: Solve for x
    x = 467,282,163,295.68/668,034.40
  6. Step 6: Final answer
    x = 699,488.18

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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.