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Finding the Fourth Proportional to 1,667,399, 2,300,903.74 and 932,413.88

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Solution

The fourth proportional to 1,667,399, 2,300,903.74 and 932,413.88 is: 1,286,671.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,667,399 : 2,300,903.74 = 932,413.88 : x
  2. Step 2: Convert to fraction form
    1,667,399/2,300,903.74 = 932,413.88/x
  3. Step 3: Cross multiply
    1,667,399x = 2,300,903.74 × 932,413.88
  4. Step 4: Simplify right side
    1,667,399x = 2,145,394,583,719.91
  5. Step 5: Solve for x
    x = 2,145,394,583,719.91/1,667,399
  6. Step 6: Final answer
    x = 1,286,671.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.