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Finding the Fourth Proportional to 424,675.44, 636,798.24 and 188,090.64

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Solution

The fourth proportional to 424,675.44, 636,798.24 and 188,090.64 is: 282,040.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,675.44 : 636,798.24 = 188,090.64 : x
  2. Step 2: Convert to fraction form
    424,675.44/636,798.24 = 188,090.64/x
  3. Step 3: Cross multiply
    424,675.44x = 636,798.24 × 188,090.64
  4. Step 4: Simplify right side
    424,675.44x = 119,775,788,512.47
  5. Step 5: Solve for x
    x = 119,775,788,512.47/424,675.44
  6. Step 6: Final answer
    x = 282,040.77

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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.