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Finding the Fourth Proportional to 6,289,967.49, 8,658,734.43 and 4,655,294.34

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Solution

The fourth proportional to 6,289,967.49, 8,658,734.43 and 4,655,294.34 is: 6,408,452.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,289,967.49 : 8,658,734.43 = 4,655,294.34 : x
  2. Step 2: Convert to fraction form
    6,289,967.49/8,658,734.43 = 4,655,294.34/x
  3. Step 3: Cross multiply
    6,289,967.49x = 8,658,734.43 × 4,655,294.34
  4. Step 4: Simplify right side
    6,289,967.49x = 40,308,957,383,542.12
  5. Step 5: Solve for x
    x = 40,308,957,383,542.12/6,289,967.49
  6. Step 6: Final answer
    x = 6,408,452.42

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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.