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Finding the Fourth Proportional to 561,796.80, 842,695.20 and 162,450.60

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Solution

The fourth proportional to 561,796.80, 842,695.20 and 162,450.60 is: 243,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,796.80 : 842,695.20 = 162,450.60 : x
  2. Step 2: Convert to fraction form
    561,796.80/842,695.20 = 162,450.60/x
  3. Step 3: Cross multiply
    561,796.80x = 842,695.20 × 162,450.60
  4. Step 4: Simplify right side
    561,796.80x = 136,896,340,857.12
  5. Step 5: Solve for x
    x = 136,896,340,857.12/561,796.80
  6. Step 6: Final answer
    x = 243,675.90

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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.