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Finding the Fourth Proportional to 713,202.44, 984,327.78 and 455,190.76

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Solution

The fourth proportional to 713,202.44, 984,327.78 and 455,190.76 is: 628,232.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,202.44 : 984,327.78 = 455,190.76 : x
  2. Step 2: Convert to fraction form
    713,202.44/984,327.78 = 455,190.76/x
  3. Step 3: Cross multiply
    713,202.44x = 984,327.78 × 455,190.76
  4. Step 4: Simplify right side
    713,202.44x = 448,056,910,267.31
  5. Step 5: Solve for x
    x = 448,056,910,267.31/713,202.44
  6. Step 6: Final answer
    x = 628,232.44

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Double scale
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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.