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Finding the Fourth Proportional to 3,954,393.07, 5,931,339.01 and 1,260,651.20

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Solution

The fourth proportional to 3,954,393.07, 5,931,339.01 and 1,260,651.20 is: 1,890,896.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,954,393.07 : 5,931,339.01 = 1,260,651.20 : x
  2. Step 2: Convert to fraction form
    3,954,393.07/5,931,339.01 = 1,260,651.20/x
  3. Step 3: Cross multiply
    3,954,393.07x = 5,931,339.01 × 1,260,651.20
  4. Step 4: Simplify right side
    3,954,393.07x = 7,477,349,607,754.99
  5. Step 5: Solve for x
    x = 7,477,349,607,754.99/3,954,393.07
  6. Step 6: Final answer
    x = 1,890,896.90

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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.