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Finding the Fourth Proportional to 1,984,953.50, 2,977,430.28 and 863,022.50

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Solution

The fourth proportional to 1,984,953.50, 2,977,430.28 and 863,022.50 is: 1,294,533.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,984,953.50 : 2,977,430.28 = 863,022.50 : x
  2. Step 2: Convert to fraction form
    1,984,953.50/2,977,430.28 = 863,022.50/x
  3. Step 3: Cross multiply
    1,984,953.50x = 2,977,430.28 × 863,022.50
  4. Step 4: Simplify right side
    1,984,953.50x = 2,569,589,323,821.30
  5. Step 5: Solve for x
    x = 2,569,589,323,821.30/1,984,953.50
  6. Step 6: Final answer
    x = 1,294,533.76

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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.