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Finding the Fourth Proportional to 4,738,394.64, 7,108,477.88 and 1,898,728.20

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Solution

The fourth proportional to 4,738,394.64, 7,108,477.88 and 1,898,728.20 is: 2,848,447.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,738,394.64 : 7,108,477.88 = 1,898,728.20 : x
  2. Step 2: Convert to fraction form
    4,738,394.64/7,108,477.88 = 1,898,728.20/x
  3. Step 3: Cross multiply
    4,738,394.64x = 7,108,477.88 × 1,898,728.20
  4. Step 4: Simplify right side
    4,738,394.64x = 13,497,067,409,832.21
  5. Step 5: Solve for x
    x = 13,497,067,409,832.21/4,738,394.64
  6. Step 6: Final answer
    x = 2,848,447.30

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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.