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Finding the Fourth Proportional to 355,896.60, 533,844.90 and 311,573.40

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Solution

The fourth proportional to 355,896.60, 533,844.90 and 311,573.40 is: 467,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,896.60 : 533,844.90 = 311,573.40 : x
  2. Step 2: Convert to fraction form
    355,896.60/533,844.90 = 311,573.40/x
  3. Step 3: Cross multiply
    355,896.60x = 533,844.90 × 311,573.40
  4. Step 4: Simplify right side
    355,896.60x = 166,331,870,565.66
  5. Step 5: Solve for x
    x = 166,331,870,565.66/355,896.60
  6. Step 6: Final answer
    x = 467,360.10

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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.