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Finding the Fourth Proportional to 5,590,604.64, 7,714,785.96 and 3,418,787.28

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Solution

The fourth proportional to 5,590,604.64, 7,714,785.96 and 3,418,787.28 is: 4,717,774.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590,604.64 : 7,714,785.96 = 3,418,787.28 : x
  2. Step 2: Convert to fraction form
    5,590,604.64/7,714,785.96 = 3,418,787.28/x
  3. Step 3: Cross multiply
    5,590,604.64x = 7,714,785.96 × 3,418,787.28
  4. Step 4: Simplify right side
    5,590,604.64x = 26,375,212,107,970.59
  5. Step 5: Solve for x
    x = 26,375,212,107,970.59/5,590,604.64
  6. Step 6: Final answer
    x = 4,717,774.52

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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.