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Finding the Fourth Proportional to 614,680.73, 848,371.44 and 356,722.73

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Solution

The fourth proportional to 614,680.73, 848,371.44 and 356,722.73 is: 492,342.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,680.73 : 848,371.44 = 356,722.73 : x
  2. Step 2: Convert to fraction form
    614,680.73/848,371.44 = 356,722.73/x
  3. Step 3: Cross multiply
    614,680.73x = 848,371.44 × 356,722.73
  4. Step 4: Simplify right side
    614,680.73x = 302,633,370,105.36
  5. Step 5: Solve for x
    x = 302,633,370,105.36/614,680.73
  6. Step 6: Final answer
    x = 492,342.38

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.