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Finding the Fourth Proportional to 415,482.33, 622,731.42 and 190,653.26

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Solution

The fourth proportional to 415,482.33, 622,731.42 and 190,653.26 is: 285,754.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,482.33 : 622,731.42 = 190,653.26 : x
  2. Step 2: Convert to fraction form
    415,482.33/622,731.42 = 190,653.26/x
  3. Step 3: Cross multiply
    415,482.33x = 622,731.42 × 190,653.26
  4. Step 4: Simplify right side
    415,482.33x = 118,725,774,374.16
  5. Step 5: Solve for x
    x = 118,725,774,374.16/415,482.33
  6. Step 6: Final answer
    x = 285,754.09

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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.