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Finding the Fourth Proportional to 262,424.25, 393,605.13 and 154,418.19

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Solution

The fourth proportional to 262,424.25, 393,605.13 and 154,418.19 is: 231,608.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,424.25 : 393,605.13 = 154,418.19 : x
  2. Step 2: Convert to fraction form
    262,424.25/393,605.13 = 154,418.19/x
  3. Step 3: Cross multiply
    262,424.25x = 393,605.13 × 154,418.19
  4. Step 4: Simplify right side
    262,424.25x = 60,779,791,749.31
  5. Step 5: Solve for x
    x = 60,779,791,749.31/262,424.25
  6. Step 6: Final answer
    x = 231,608.90

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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.