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Finding the Fourth Proportional to 622,854.34, 859,538.94 and 336,374.38

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Solution

The fourth proportional to 622,854.34, 859,538.94 and 336,374.38 is: 464,196.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,854.34 : 859,538.94 = 336,374.38 : x
  2. Step 2: Convert to fraction form
    622,854.34/859,538.94 = 336,374.38/x
  3. Step 3: Cross multiply
    622,854.34x = 859,538.94 × 336,374.38
  4. Step 4: Simplify right side
    622,854.34x = 289,126,878,028.36
  5. Step 5: Solve for x
    x = 289,126,878,028.36/622,854.34
  6. Step 6: Final answer
    x = 464,196.62

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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.