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Finding the Fourth Proportional to 4,992,476.61, 7,485,826.71 and 1,956,287.75

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Solution

The fourth proportional to 4,992,476.61, 7,485,826.71 and 1,956,287.75 is: 2,933,299.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,992,476.61 : 7,485,826.71 = 1,956,287.75 : x
  2. Step 2: Convert to fraction form
    4,992,476.61/7,485,826.71 = 1,956,287.75/x
  3. Step 3: Cross multiply
    4,992,476.61x = 7,485,826.71 × 1,956,287.75
  4. Step 4: Simplify right side
    4,992,476.61x = 14,644,431,103,410.52
  5. Step 5: Solve for x
    x = 14,644,431,103,410.52/4,992,476.61
  6. Step 6: Final answer
    x = 2,933,299.89

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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.