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Finding the Fourth Proportional to 1,619,607.88, 2,429,865.84 and 708,869.65

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Solution

The fourth proportional to 1,619,607.88, 2,429,865.84 and 708,869.65 is: 1,063,503.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,619,607.88 : 2,429,865.84 = 708,869.65 : x
  2. Step 2: Convert to fraction form
    1,619,607.88/2,429,865.84 = 708,869.65/x
  3. Step 3: Cross multiply
    1,619,607.88x = 2,429,865.84 × 708,869.65
  4. Step 4: Simplify right side
    1,619,607.88x = 1,722,458,144,003.41
  5. Step 5: Solve for x
    x = 1,722,458,144,003.41/1,619,607.88
  6. Step 6: Final answer
    x = 1,063,503.19

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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.