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Finding the Fourth Proportional to 505,695.77, 758,289.72 and 168,617.11

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Solution

The fourth proportional to 505,695.77, 758,289.72 and 168,617.11 is: 252,840.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,695.77 : 758,289.72 = 168,617.11 : x
  2. Step 2: Convert to fraction form
    505,695.77/758,289.72 = 168,617.11/x
  3. Step 3: Cross multiply
    505,695.77x = 758,289.72 × 168,617.11
  4. Step 4: Simplify right side
    505,695.77x = 127,860,617,337.66
  5. Step 5: Solve for x
    x = 127,860,617,337.66/505,695.77
  6. Step 6: Final answer
    x = 252,840.99

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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.