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Finding the Fourth Proportional to 410,858.99, 616,288.49 and 111,339.56

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Solution

The fourth proportional to 410,858.99, 616,288.49 and 111,339.56 is: 167,009.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,858.99 : 616,288.49 = 111,339.56 : x
  2. Step 2: Convert to fraction form
    410,858.99/616,288.49 = 111,339.56/x
  3. Step 3: Cross multiply
    410,858.99x = 616,288.49 × 111,339.56
  4. Step 4: Simplify right side
    410,858.99x = 68,617,287,870.87
  5. Step 5: Solve for x
    x = 68,617,287,870.87/410,858.99
  6. Step 6: Final answer
    x = 167,009.34

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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.