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Finding the Fourth Proportional to 5,648,919.40, 8,473,379.10 and 4,940,331.40

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Solution

The fourth proportional to 5,648,919.40, 8,473,379.10 and 4,940,331.40 is: 7,410,497.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,648,919.40 : 8,473,379.10 = 4,940,331.40 : x
  2. Step 2: Convert to fraction form
    5,648,919.40/8,473,379.10 = 4,940,331.40/x
  3. Step 3: Cross multiply
    5,648,919.40x = 8,473,379.10 × 4,940,331.40
  4. Step 4: Simplify right side
    5,648,919.40x = 41,861,300,831,833.74
  5. Step 5: Solve for x
    x = 41,861,300,831,833.74/5,648,919.40
  6. Step 6: Final answer
    x = 7,410,497.10

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Similar ratio
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1.5x scale

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.