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Finding the Fourth Proportional to 286,831.50, 395,910.84 and 191,337.96

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Solution

The fourth proportional to 286,831.50, 395,910.84 and 191,337.96 is: 264,102.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,831.50 : 395,910.84 = 191,337.96 : x
  2. Step 2: Convert to fraction form
    286,831.50/395,910.84 = 191,337.96/x
  3. Step 3: Cross multiply
    286,831.50x = 395,910.84 × 191,337.96
  4. Step 4: Simplify right side
    286,831.50x = 75,752,772,467.49
  5. Step 5: Solve for x
    x = 75,752,772,467.49/286,831.50
  6. Step 6: Final answer
    x = 264,102.00

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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.