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Finding the Fourth Proportional to 611,884.00, 917,510.86 and 274,635.54

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Solution

The fourth proportional to 611,884.00, 917,510.86 and 274,635.54 is: 411,811.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,884.00 : 917,510.86 = 274,635.54 : x
  2. Step 2: Convert to fraction form
    611,884.00/917,510.86 = 274,635.54/x
  3. Step 3: Cross multiply
    611,884.00x = 917,510.86 × 274,635.54
  4. Step 4: Simplify right side
    611,884.00x = 251,981,090,835.26
  5. Step 5: Solve for x
    x = 251,981,090,835.26/611,884.00
  6. Step 6: Final answer
    x = 411,811.86

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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.