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Finding the Fourth Proportional to 414,554.69, 620,835.54 and 236,521.95

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Solution

The fourth proportional to 414,554.69, 620,835.54 and 236,521.95 is: 354,214.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,554.69 : 620,835.54 = 236,521.95 : x
  2. Step 2: Convert to fraction form
    414,554.69/620,835.54 = 236,521.95/x
  3. Step 3: Cross multiply
    414,554.69x = 620,835.54 × 236,521.95
  4. Step 4: Simplify right side
    414,554.69x = 146,841,232,550.10
  5. Step 5: Solve for x
    x = 146,841,232,550.10/414,554.69
  6. Step 6: Final answer
    x = 354,214.38

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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.