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Finding the Fourth Proportional to 658,149.51, 987,224.26 and 159,513.51

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Solution

The fourth proportional to 658,149.51, 987,224.26 and 159,513.51 is: 239,270.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,149.51 : 987,224.26 = 159,513.51 : x
  2. Step 2: Convert to fraction form
    658,149.51/987,224.26 = 159,513.51/x
  3. Step 3: Cross multiply
    658,149.51x = 987,224.26 × 159,513.51
  4. Step 4: Simplify right side
    658,149.51x = 157,475,601,933.63
  5. Step 5: Solve for x
    x = 157,475,601,933.63/658,149.51
  6. Step 6: Final answer
    x = 239,270.26

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Half scale
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Double scale
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Similar ratio
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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.