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Finding the Fourth Proportional to 414,242.65, 621,357.63 and 186,377.32

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Solution

The fourth proportional to 414,242.65, 621,357.63 and 186,377.32 is: 279,563.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,242.65 : 621,357.63 = 186,377.32 : x
  2. Step 2: Convert to fraction form
    414,242.65/621,357.63 = 186,377.32/x
  3. Step 3: Cross multiply
    414,242.65x = 621,357.63 × 186,377.32
  4. Step 4: Simplify right side
    414,242.65x = 115,806,969,840.95
  5. Step 5: Solve for x
    x = 115,806,969,840.95/414,242.65
  6. Step 6: Final answer
    x = 279,563.13

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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.