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Finding the Fourth Proportional to 939,481,615.80, 1,409,222,423.70 and 939,481,615.80

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Solution

The fourth proportional to 939,481,615.80, 1,409,222,423.70 and 939,481,615.80 is: 1,409,222,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,481,615.80 : 1,409,222,423.70 = 939,481,615.80 : x
  2. Step 2: Convert to fraction form
    939,481,615.80/1,409,222,423.70 = 939,481,615.80/x
  3. Step 3: Cross multiply
    939,481,615.80x = 1,409,222,423.70 × 939,481,615.80
  4. Step 4: Simplify right side
    939,481,615.80x = 1,323,938,559,639,268,096
  5. Step 5: Solve for x
    x = 1,323,938,559,639,268,096/939,481,615.80
  6. Step 6: Final answer
    x = 1,409,222,423.70

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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.