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Finding the Fourth Proportional to 324,205.50, 447,455.46 and 190,069.50

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Solution

The fourth proportional to 324,205.50, 447,455.46 and 190,069.50 is: 262,326.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,205.50 : 447,455.46 = 190,069.50 : x
  2. Step 2: Convert to fraction form
    324,205.50/447,455.46 = 190,069.50/x
  3. Step 3: Cross multiply
    324,205.50x = 447,455.46 × 190,069.50
  4. Step 4: Simplify right side
    324,205.50x = 85,047,635,554.47
  5. Step 5: Solve for x
    x = 85,047,635,554.47/324,205.50
  6. Step 6: Final answer
    x = 262,326.32

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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.