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Finding the Fourth Proportional to 783,368, 1,175,049.12 and 222,402.56

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Solution

The fourth proportional to 783,368, 1,175,049.12 and 222,402.56 is: 333,603.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,368 : 1,175,049.12 = 222,402.56 : x
  2. Step 2: Convert to fraction form
    783,368/1,175,049.12 = 222,402.56/x
  3. Step 3: Cross multiply
    783,368x = 1,175,049.12 × 222,402.56
  4. Step 4: Simplify right side
    783,368x = 261,333,932,413.75
  5. Step 5: Solve for x
    x = 261,333,932,413.75/783,368
  6. Step 6: Final answer
    x = 333,603.02

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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.