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Finding the Fourth Proportional to 620,593,314.80, 930,889,972.20 and 275,180,284.40

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Solution

The fourth proportional to 620,593,314.80, 930,889,972.20 and 275,180,284.40 is: 412,770,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,593,314.80 : 930,889,972.20 = 275,180,284.40 : x
  2. Step 2: Convert to fraction form
    620,593,314.80/930,889,972.20 = 275,180,284.40/x
  3. Step 3: Cross multiply
    620,593,314.80x = 930,889,972.20 × 275,180,284.40
  4. Step 4: Simplify right side
    620,593,314.80x = 256,162,567,295,104,096
  5. Step 5: Solve for x
    x = 256,162,567,295,104,096/620,593,314.80
  6. Step 6: Final answer
    x = 412,770,426.60

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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.