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Finding the Fourth Proportional to 275,903.44, 380,781.84 and 168,450.40

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Solution

The fourth proportional to 275,903.44, 380,781.84 and 168,450.40 is: 232,482.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,903.44 : 380,781.84 = 168,450.40 : x
  2. Step 2: Convert to fraction form
    275,903.44/380,781.84 = 168,450.40/x
  3. Step 3: Cross multiply
    275,903.44x = 380,781.84 × 168,450.40
  4. Step 4: Simplify right side
    275,903.44x = 64,142,853,260.74
  5. Step 5: Solve for x
    x = 64,142,853,260.74/275,903.44
  6. Step 6: Final answer
    x = 232,482.98

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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.