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Finding the Fourth Proportional to 366,399.78, 505,622.58 and 205,253.76

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Solution

The fourth proportional to 366,399.78, 505,622.58 and 205,253.76 is: 283,245.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,399.78 : 505,622.58 = 205,253.76 : x
  2. Step 2: Convert to fraction form
    366,399.78/505,622.58 = 205,253.76/x
  3. Step 3: Cross multiply
    366,399.78x = 505,622.58 × 205,253.76
  4. Step 4: Simplify right side
    366,399.78x = 103,780,935,685.90
  5. Step 5: Solve for x
    x = 103,780,935,685.90/366,399.78
  6. Step 6: Final answer
    x = 283,245.08

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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.