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Finding the Fourth Proportional to 555,115.42, 766,202.79 and 362,004.49

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Solution

The fourth proportional to 555,115.42, 766,202.79 and 362,004.49 is: 499,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,115.42 : 766,202.79 = 362,004.49 : x
  2. Step 2: Convert to fraction form
    555,115.42/766,202.79 = 362,004.49/x
  3. Step 3: Cross multiply
    555,115.42x = 766,202.79 × 362,004.49
  4. Step 4: Simplify right side
    555,115.42x = 277,368,850,230.53
  5. Step 5: Solve for x
    x = 277,368,850,230.53/555,115.42
  6. Step 6: Final answer
    x = 499,659.78

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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.