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Finding the Fourth Proportional to 505,109.88, 696,831.36 and 332,806.74

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Solution

The fourth proportional to 505,109.88, 696,831.36 and 332,806.74 is: 459,128.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,109.88 : 696,831.36 = 332,806.74 : x
  2. Step 2: Convert to fraction form
    505,109.88/696,831.36 = 332,806.74/x
  3. Step 3: Cross multiply
    505,109.88x = 696,831.36 × 332,806.74
  4. Step 4: Simplify right side
    505,109.88x = 231,910,173,251.37
  5. Step 5: Solve for x
    x = 231,910,173,251.37/505,109.88
  6. Step 6: Final answer
    x = 459,128.17

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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.