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Finding the Fourth Proportional to 3,198,725.91, 4,799,421.72 and 1,402,898.94

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Solution

The fourth proportional to 3,198,725.91, 4,799,421.72 and 1,402,898.94 is: 2,104,932.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,198,725.91 : 4,799,421.72 = 1,402,898.94 : x
  2. Step 2: Convert to fraction form
    3,198,725.91/4,799,421.72 = 1,402,898.94/x
  3. Step 3: Cross multiply
    3,198,725.91x = 4,799,421.72 × 1,402,898.94
  4. Step 4: Simplify right side
    3,198,725.91x = 6,733,103,643,600.98
  5. Step 5: Solve for x
    x = 6,733,103,643,600.98/3,198,725.91
  6. Step 6: Final answer
    x = 2,104,932.97

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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.