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Finding the Fourth Proportional to 3,938,346.45, 5,898,188.48 and 3,938,346.45

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Solution

The fourth proportional to 3,938,346.45, 5,898,188.48 and 3,938,346.45 is: 5,898,188.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,938,346.45 : 5,898,188.48 = 3,938,346.45 : x
  2. Step 2: Convert to fraction form
    3,938,346.45/5,898,188.48 = 3,938,346.45/x
  3. Step 3: Cross multiply
    3,938,346.45x = 5,898,188.48 × 3,938,346.45
  4. Step 4: Simplify right side
    3,938,346.45x = 23,229,109,641,947.16
  5. Step 5: Solve for x
    x = 23,229,109,641,947.16/3,938,346.45
  6. Step 6: Final answer
    x = 5,898,188.48

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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.