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Finding the Fourth Proportional to 303,533.36, 418,918.28 and 169,406

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Solution

The fourth proportional to 303,533.36, 418,918.28 and 169,406 is: 233,803.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,533.36 : 418,918.28 = 169,406 : x
  2. Step 2: Convert to fraction form
    303,533.36/418,918.28 = 169,406/x
  3. Step 3: Cross multiply
    303,533.36x = 418,918.28 × 169,406
  4. Step 4: Simplify right side
    303,533.36x = 70,967,270,141.68
  5. Step 5: Solve for x
    x = 70,967,270,141.68/303,533.36
  6. Step 6: Final answer
    x = 233,803.86

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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.