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Finding the Fourth Proportional to 515,565.27, 773,247.74 and 259,329.60

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Solution

The fourth proportional to 515,565.27, 773,247.74 and 259,329.60 is: 388,944.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,565.27 : 773,247.74 = 259,329.60 : x
  2. Step 2: Convert to fraction form
    515,565.27/773,247.74 = 259,329.60/x
  3. Step 3: Cross multiply
    515,565.27x = 773,247.74 × 259,329.60
  4. Step 4: Simplify right side
    515,565.27x = 200,526,025,818.46
  5. Step 5: Solve for x
    x = 200,526,025,818.46/515,565.27
  6. Step 6: Final answer
    x = 388,944.01

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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.