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Finding the Fourth Proportional to 265,243.52, 397,869.36 and 147,662.20

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Solution

The fourth proportional to 265,243.52, 397,869.36 and 147,662.20 is: 221,495.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,243.52 : 397,869.36 = 147,662.20 : x
  2. Step 2: Convert to fraction form
    265,243.52/397,869.36 = 147,662.20/x
  3. Step 3: Cross multiply
    265,243.52x = 397,869.36 × 147,662.20
  4. Step 4: Simplify right side
    265,243.52x = 58,750,265,010.19
  5. Step 5: Solve for x
    x = 58,750,265,010.19/265,243.52
  6. Step 6: Final answer
    x = 221,495.57

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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.