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Finding the Fourth Proportional to 292,605.82, 438,908.65 and 82,243.73

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Solution

The fourth proportional to 292,605.82, 438,908.65 and 82,243.73 is: 123,365.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,605.82 : 438,908.65 = 82,243.73 : x
  2. Step 2: Convert to fraction form
    292,605.82/438,908.65 = 82,243.73/x
  3. Step 3: Cross multiply
    292,605.82x = 438,908.65 × 82,243.73
  4. Step 4: Simplify right side
    292,605.82x = 36,097,484,505.26
  5. Step 5: Solve for x
    x = 36,097,484,505.26/292,605.82
  6. Step 6: Final answer
    x = 123,365.57

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1.5x scale

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.