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Finding the Fourth Proportional to 397,703.44, 548,831.73 and 216,415.27

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Solution

The fourth proportional to 397,703.44, 548,831.73 and 216,415.27 is: 298,653.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,703.44 : 548,831.73 = 216,415.27 : x
  2. Step 2: Convert to fraction form
    397,703.44/548,831.73 = 216,415.27/x
  3. Step 3: Cross multiply
    397,703.44x = 548,831.73 × 216,415.27
  4. Step 4: Simplify right side
    397,703.44x = 118,775,567,032.52
  5. Step 5: Solve for x
    x = 118,775,567,032.52/397,703.44
  6. Step 6: Final answer
    x = 298,653.61

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1.5x scale

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.