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Finding the Fourth Proportional to 275,646.44, 380,433.31 and 168,278.92

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Solution

The fourth proportional to 275,646.44, 380,433.31 and 168,278.92 is: 232,250.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,646.44 : 380,433.31 = 168,278.92 : x
  2. Step 2: Convert to fraction form
    275,646.44/380,433.31 = 168,278.92/x
  3. Step 3: Cross multiply
    275,646.44x = 380,433.31 × 168,278.92
  4. Step 4: Simplify right side
    275,646.44x = 64,018,905,167.04
  5. Step 5: Solve for x
    x = 64,018,905,167.04/275,646.44
  6. Step 6: Final answer
    x = 232,250.07

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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.