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Finding the Fourth Proportional to 5,372,878.40, 8,065,538.40 and 3,245,364.80

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Solution

The fourth proportional to 5,372,878.40, 8,065,538.40 and 3,245,364.80 is: 4,871,804.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,372,878.40 : 8,065,538.40 = 3,245,364.80 : x
  2. Step 2: Convert to fraction form
    5,372,878.40/8,065,538.40 = 3,245,364.80/x
  3. Step 3: Cross multiply
    5,372,878.40x = 8,065,538.40 × 3,245,364.80
  4. Step 4: Simplify right side
    5,372,878.40x = 26,175,614,416,408.32
  5. Step 5: Solve for x
    x = 26,175,614,416,408.32/5,372,878.40
  6. Step 6: Final answer
    x = 4,871,804.73

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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.