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Finding the Fourth Proportional to 3,607,647.08, 4,978,551.87 and 1,976,156.01

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Solution

The fourth proportional to 3,607,647.08, 4,978,551.87 and 1,976,156.01 is: 2,727,094.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,607,647.08 : 4,978,551.87 = 1,976,156.01 : x
  2. Step 2: Convert to fraction form
    3,607,647.08/4,978,551.87 = 1,976,156.01/x
  3. Step 3: Cross multiply
    3,607,647.08x = 4,978,551.87 × 1,976,156.01
  4. Step 4: Simplify right side
    3,607,647.08x = 9,838,395,198,997.24
  5. Step 5: Solve for x
    x = 9,838,395,198,997.24/3,607,647.08
  6. Step 6: Final answer
    x = 2,727,094.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.