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Finding the Fourth Proportional to 453,245.15, 679,945.18 and 186,860.05

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Solution

The fourth proportional to 453,245.15, 679,945.18 and 186,860.05 is: 280,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,245.15 : 679,945.18 = 186,860.05 : x
  2. Step 2: Convert to fraction form
    453,245.15/679,945.18 = 186,860.05/x
  3. Step 3: Cross multiply
    453,245.15x = 679,945.18 × 186,860.05
  4. Step 4: Simplify right side
    453,245.15x = 127,054,586,932.33
  5. Step 5: Solve for x
    x = 127,054,586,932.33/453,245.15
  6. Step 6: Final answer
    x = 280,322.00

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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.