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Finding the Fourth Proportional to 505,418.98, 757,874.89 and 168,341.08

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Solution

The fourth proportional to 505,418.98, 757,874.89 and 168,341.08 is: 252,427.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,418.98 : 757,874.89 = 168,341.08 : x
  2. Step 2: Convert to fraction form
    505,418.98/757,874.89 = 168,341.08/x
  3. Step 3: Cross multiply
    505,418.98x = 757,874.89 × 168,341.08
  4. Step 4: Simplify right side
    505,418.98x = 127,581,477,487.48
  5. Step 5: Solve for x
    x = 127,581,477,487.48/505,418.98
  6. Step 6: Final answer
    x = 252,427.16

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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.