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Finding the Fourth Proportional to 340,901.22, 511,351.56 and 91,583.22

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Solution

The fourth proportional to 340,901.22, 511,351.56 and 91,583.22 is: 137,374.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,901.22 : 511,351.56 = 91,583.22 : x
  2. Step 2: Convert to fraction form
    340,901.22/511,351.56 = 91,583.22/x
  3. Step 3: Cross multiply
    340,901.22x = 511,351.56 × 91,583.22
  4. Step 4: Simplify right side
    340,901.22x = 46,831,222,416.82
  5. Step 5: Solve for x
    x = 46,831,222,416.82/340,901.22
  6. Step 6: Final answer
    x = 137,374.76

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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.