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Finding the Fourth Proportional to 685,814.50, 946,205.30 and 444,282.22

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Solution

The fourth proportional to 685,814.50, 946,205.30 and 444,282.22 is: 612,967.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,814.50 : 946,205.30 = 444,282.22 : x
  2. Step 2: Convert to fraction form
    685,814.50/946,205.30 = 444,282.22/x
  3. Step 3: Cross multiply
    685,814.50x = 946,205.30 × 444,282.22
  4. Step 4: Simplify right side
    685,814.50x = 420,382,191,259.77
  5. Step 5: Solve for x
    x = 420,382,191,259.77/685,814.50
  6. Step 6: Final answer
    x = 612,967.78

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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.