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Finding the Fourth Proportional to 351,345.35, 484,856.75 and 190,200.40

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Solution

The fourth proportional to 351,345.35, 484,856.75 and 190,200.40 is: 262,476.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,345.35 : 484,856.75 = 190,200.40 : x
  2. Step 2: Convert to fraction form
    351,345.35/484,856.75 = 190,200.40/x
  3. Step 3: Cross multiply
    351,345.35x = 484,856.75 × 190,200.40
  4. Step 4: Simplify right side
    351,345.35x = 92,219,945,629.56
  5. Step 5: Solve for x
    x = 92,219,945,629.56/351,345.35
  6. Step 6: Final answer
    x = 262,476.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.