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Finding the Fourth Proportional to 570,155.44, 855,481.20 and 357,410.92

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Solution

The fourth proportional to 570,155.44, 855,481.20 and 357,410.92 is: 536,271.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,155.44 : 855,481.20 = 357,410.92 : x
  2. Step 2: Convert to fraction form
    570,155.44/855,481.20 = 357,410.92/x
  3. Step 3: Cross multiply
    570,155.44x = 855,481.20 × 357,410.92
  4. Step 4: Simplify right side
    570,155.44x = 305,758,322,734.70
  5. Step 5: Solve for x
    x = 305,758,322,734.70/570,155.44
  6. Step 6: Final answer
    x = 536,271.87

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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.