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Finding the Fourth Proportional to 303,815.52, 419,265.54 and 165,996.36

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Solution

The fourth proportional to 303,815.52, 419,265.54 and 165,996.36 is: 229,075.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,815.52 : 419,265.54 = 165,996.36 : x
  2. Step 2: Convert to fraction form
    303,815.52/419,265.54 = 165,996.36/x
  3. Step 3: Cross multiply
    303,815.52x = 419,265.54 × 165,996.36
  4. Step 4: Simplify right side
    303,815.52x = 69,596,553,513.43
  5. Step 5: Solve for x
    x = 69,596,553,513.43/303,815.52
  6. Step 6: Final answer
    x = 229,075.04

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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.