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Finding the Fourth Proportional to 1,093,065,622.60, 1,639,598,433.90 and 987,627,728.20

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Solution

The fourth proportional to 1,093,065,622.60, 1,639,598,433.90 and 987,627,728.20 is: 1,481,441,592.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,065,622.60 : 1,639,598,433.90 = 987,627,728.20 : x
  2. Step 2: Convert to fraction form
    1,093,065,622.60/1,639,598,433.90 = 987,627,728.20/x
  3. Step 3: Cross multiply
    1,093,065,622.60x = 1,639,598,433.90 × 987,627,728.20
  4. Step 4: Simplify right side
    1,093,065,622.60x = 1,619,312,876,432,934,912
  5. Step 5: Solve for x
    x = 1,619,312,876,432,934,912/1,093,065,622.60
  6. Step 6: Final answer
    x = 1,481,441,592.30

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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.