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Finding the Fourth Proportional to 453,078.24, 679,606.32 and 186,654.24

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Solution

The fourth proportional to 453,078.24, 679,606.32 and 186,654.24 is: 279,976.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,078.24 : 679,606.32 = 186,654.24 : x
  2. Step 2: Convert to fraction form
    453,078.24/679,606.32 = 186,654.24/x
  3. Step 3: Cross multiply
    453,078.24x = 679,606.32 × 186,654.24
  4. Step 4: Simplify right side
    453,078.24x = 126,851,401,158.80
  5. Step 5: Solve for x
    x = 126,851,401,158.80/453,078.24
  6. Step 6: Final answer
    x = 279,976.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.