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Finding the Fourth Proportional to 3,337,647.90, 4,978,413.35 and 3,031,146.36

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Solution

The fourth proportional to 3,337,647.90, 4,978,413.35 and 3,031,146.36 is: 4,521,237.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,337,647.90 : 4,978,413.35 = 3,031,146.36 : x
  2. Step 2: Convert to fraction form
    3,337,647.90/4,978,413.35 = 3,031,146.36/x
  3. Step 3: Cross multiply
    3,337,647.90x = 4,978,413.35 × 3,031,146.36
  4. Step 4: Simplify right side
    3,337,647.90x = 15,090,299,489,272.17
  5. Step 5: Solve for x
    x = 15,090,299,489,272.17/3,337,647.90
  6. Step 6: Final answer
    x = 4,521,237.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.