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Finding the Fourth Proportional to 939,481,902.80, 1,409,222,854.20 and 939,481,902.80

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Solution

The fourth proportional to 939,481,902.80, 1,409,222,854.20 and 939,481,902.80 is: 1,409,222,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,481,902.80 : 1,409,222,854.20 = 939,481,902.80 : x
  2. Step 2: Convert to fraction form
    939,481,902.80/1,409,222,854.20 = 939,481,902.80/x
  3. Step 3: Cross multiply
    939,481,902.80x = 1,409,222,854.20 × 939,481,902.80
  4. Step 4: Simplify right side
    939,481,902.80x = 1,323,939,368,533,062,912
  5. Step 5: Solve for x
    x = 1,323,939,368,533,062,912/939,481,902.80
  6. Step 6: Final answer
    x = 1,409,222,854.20

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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.