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Finding the Fourth Proportional to 6,398,021.72, 8,829,270.64 and 3,497,424.41

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Solution

The fourth proportional to 6,398,021.72, 8,829,270.64 and 3,497,424.41 is: 4,826,446.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,398,021.72 : 8,829,270.64 = 3,497,424.41 : x
  2. Step 2: Convert to fraction form
    6,398,021.72/8,829,270.64 = 3,497,424.41/x
  3. Step 3: Cross multiply
    6,398,021.72x = 8,829,270.64 × 3,497,424.41
  4. Step 4: Simplify right side
    6,398,021.72x = 30,879,706,658,832.32
  5. Step 5: Solve for x
    x = 30,879,706,658,832.32/6,398,021.72
  6. Step 6: Final answer
    x = 4,826,446.05

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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.