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Finding the Fourth Proportional to 516,624.40, 774,619.62 and 200,712.52

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Solution

The fourth proportional to 516,624.40, 774,619.62 and 200,712.52 is: 300,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,624.40 : 774,619.62 = 200,712.52 : x
  2. Step 2: Convert to fraction form
    516,624.40/774,619.62 = 200,712.52/x
  3. Step 3: Cross multiply
    516,624.40x = 774,619.62 × 200,712.52
  4. Step 4: Simplify right side
    516,624.40x = 155,475,855,971.64
  5. Step 5: Solve for x
    x = 155,475,855,971.64/516,624.40
  6. Step 6: Final answer
    x = 300,945.63

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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.