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Finding the Fourth Proportional to 3,180,643.60, 4,443,453.20 and 3,180,643.60

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Solution

The fourth proportional to 3,180,643.60, 4,443,453.20 and 3,180,643.60 is: 4,443,453.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180,643.60 : 4,443,453.20 = 3,180,643.60 : x
  2. Step 2: Convert to fraction form
    3,180,643.60/4,443,453.20 = 3,180,643.60/x
  3. Step 3: Cross multiply
    3,180,643.60x = 4,443,453.20 × 3,180,643.60
  4. Step 4: Simplify right side
    3,180,643.60x = 14,133,040,982,479.52
  5. Step 5: Solve for x
    x = 14,133,040,982,479.52/3,180,643.60
  6. Step 6: Final answer
    x = 4,443,453.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.