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Finding the Fourth Proportional to 622,866.96, 859,556.34 and 336,387.06

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Solution

The fourth proportional to 622,866.96, 859,556.34 and 336,387.06 is: 464,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,866.96 : 859,556.34 = 336,387.06 : x
  2. Step 2: Convert to fraction form
    622,866.96/859,556.34 = 336,387.06/x
  3. Step 3: Cross multiply
    622,866.96x = 859,556.34 × 336,387.06
  4. Step 4: Simplify right side
    622,866.96x = 289,143,630,116.96
  5. Step 5: Solve for x
    x = 289,143,630,116.96/622,866.96
  6. Step 6: Final answer
    x = 464,214.11

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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.