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Finding the Fourth Proportional to 1,891,413.14, 2,837,951.45 and 992,644.30

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Solution

The fourth proportional to 1,891,413.14, 2,837,951.45 and 992,644.30 is: 1,489,402.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,891,413.14 : 2,837,951.45 = 992,644.30 : x
  2. Step 2: Convert to fraction form
    1,891,413.14/2,837,951.45 = 992,644.30/x
  3. Step 3: Cross multiply
    1,891,413.14x = 2,837,951.45 × 992,644.30
  4. Step 4: Simplify right side
    1,891,413.14x = 2,817,076,325,905.97
  5. Step 5: Solve for x
    x = 2,817,076,325,905.97/1,891,413.14
  6. Step 6: Final answer
    x = 1,489,402.96

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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.