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Finding the Fourth Proportional to 3,312,400.78, 4,968,837.42 and 883,540.44

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Solution

The fourth proportional to 3,312,400.78, 4,968,837.42 and 883,540.44 is: 1,325,373.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,312,400.78 : 4,968,837.42 = 883,540.44 : x
  2. Step 2: Convert to fraction form
    3,312,400.78/4,968,837.42 = 883,540.44/x
  3. Step 3: Cross multiply
    3,312,400.78x = 4,968,837.42 × 883,540.44
  4. Step 4: Simplify right side
    3,312,400.78x = 4,390,168,800,355.26
  5. Step 5: Solve for x
    x = 4,390,168,800,355.26/3,312,400.78
  6. Step 6: Final answer
    x = 1,325,373.68

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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.