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Finding the Fourth Proportional to 1,926,696.54, 2,890,450.62 and 728,592.33

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Solution

The fourth proportional to 1,926,696.54, 2,890,450.62 and 728,592.33 is: 1,093,041.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,926,696.54 : 2,890,450.62 = 728,592.33 : x
  2. Step 2: Convert to fraction form
    1,926,696.54/2,890,450.62 = 728,592.33/x
  3. Step 3: Cross multiply
    1,926,696.54x = 2,890,450.62 × 728,592.33
  4. Step 4: Simplify right side
    1,926,696.54x = 2,105,960,151,975.74
  5. Step 5: Solve for x
    x = 2,105,960,151,975.74/1,926,696.54
  6. Step 6: Final answer
    x = 1,093,041.95

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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.