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Finding the Fourth Proportional to 262,378.90, 362,072.46 and 154,983.43

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Solution

The fourth proportional to 262,378.90, 362,072.46 and 154,983.43 is: 213,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,378.90 : 362,072.46 = 154,983.43 : x
  2. Step 2: Convert to fraction form
    262,378.90/362,072.46 = 154,983.43/x
  3. Step 3: Cross multiply
    262,378.90x = 362,072.46 × 154,983.43
  4. Step 4: Simplify right side
    262,378.90x = 56,115,231,759.34
  5. Step 5: Solve for x
    x = 56,115,231,759.34/262,378.90
  6. Step 6: Final answer
    x = 213,870.98

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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.