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Finding the Fourth Proportional to 1,984,394.41, 2,975,628.72 and 1,163,957.15

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Solution

The fourth proportional to 1,984,394.41, 2,975,628.72 and 1,163,957.15 is: 1,745,370.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,394.41 : 2,975,628.72 = 1,163,957.15 : x
  2. Step 2: Convert to fraction form
    1,984,394.41/2,975,628.72 = 1,163,957.15/x
  3. Step 3: Cross multiply
    1,984,394.41x = 2,975,628.72 × 1,163,957.15
  4. Step 4: Simplify right side
    1,984,394.41x = 3,463,504,324,389.35
  5. Step 5: Solve for x
    x = 3,463,504,324,389.35/1,984,394.41
  6. Step 6: Final answer
    x = 1,745,370.93

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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.