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Finding the Fourth Proportional to 6,278,569.88, 8,662,238.73 and 3,955,669.88

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Solution

The fourth proportional to 6,278,569.88, 8,662,238.73 and 3,955,669.88 is: 5,457,446.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,278,569.88 : 8,662,238.73 = 3,955,669.88 : x
  2. Step 2: Convert to fraction form
    6,278,569.88/8,662,238.73 = 3,955,669.88/x
  3. Step 3: Cross multiply
    6,278,569.88x = 8,662,238.73 × 3,955,669.88
  4. Step 4: Simplify right side
    6,278,569.88x = 34,264,956,794,319.26
  5. Step 5: Solve for x
    x = 34,264,956,794,319.26/6,278,569.88
  6. Step 6: Final answer
    x = 5,457,446.12

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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.