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Finding the Fourth Proportional to 516,846.40, 774,693.60 and 201,198.40

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Solution

The fourth proportional to 516,846.40, 774,693.60 and 201,198.40 is: 301,573.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,846.40 : 774,693.60 = 201,198.40 : x
  2. Step 2: Convert to fraction form
    516,846.40/774,693.60 = 201,198.40/x
  3. Step 3: Cross multiply
    516,846.40x = 774,693.60 × 201,198.40
  4. Step 4: Simplify right side
    516,846.40x = 155,867,112,810.24
  5. Step 5: Solve for x
    x = 155,867,112,810.24/516,846.40
  6. Step 6: Final answer
    x = 301,573.37

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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.