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Finding the Fourth Proportional to 286,818.34, 395,892.74 and 191,324.81

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Solution

The fourth proportional to 286,818.34, 395,892.74 and 191,324.81 is: 264,083.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,818.34 : 395,892.74 = 191,324.81 : x
  2. Step 2: Convert to fraction form
    286,818.34/395,892.74 = 191,324.81/x
  3. Step 3: Cross multiply
    286,818.34x = 395,892.74 × 191,324.81
  4. Step 4: Simplify right side
    286,818.34x = 75,744,101,759.73
  5. Step 5: Solve for x
    x = 75,744,101,759.73/286,818.34
  6. Step 6: Final answer
    x = 264,083.89

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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.