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Finding the Fourth Proportional to 6,349,894.32, 8,762,919.48 and 3,449,342.64

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Solution

The fourth proportional to 6,349,894.32, 8,762,919.48 and 3,449,342.64 is: 4,760,128.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,349,894.32 : 8,762,919.48 = 3,449,342.64 : x
  2. Step 2: Convert to fraction form
    6,349,894.32/8,762,919.48 = 3,449,342.64/x
  3. Step 3: Cross multiply
    6,349,894.32x = 8,762,919.48 × 3,449,342.64
  4. Step 4: Simplify right side
    6,349,894.32x = 30,226,311,813,250.63
  5. Step 5: Solve for x
    x = 30,226,311,813,250.63/6,349,894.32
  6. Step 6: Final answer
    x = 4,760,128.32

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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.