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Finding the Fourth Proportional to 1,788,583.28, 2,682,947.88 and 574,283.12

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Solution

The fourth proportional to 1,788,583.28, 2,682,947.88 and 574,283.12 is: 861,448.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,788,583.28 : 2,682,947.88 = 574,283.12 : x
  2. Step 2: Convert to fraction form
    1,788,583.28/2,682,947.88 = 574,283.12/x
  3. Step 3: Cross multiply
    1,788,583.28x = 2,682,947.88 × 574,283.12
  4. Step 4: Simplify right side
    1,788,583.28x = 1,540,771,679,323.79
  5. Step 5: Solve for x
    x = 1,540,771,679,323.79/1,788,583.28
  6. Step 6: Final answer
    x = 861,448.11

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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.