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Finding the Fourth Proportional to 1,492,993,000.45, 2,085,352,906.55 and 1,492,993,000.45

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Solution

The fourth proportional to 1,492,993,000.45, 2,085,352,906.55 and 1,492,993,000.45 is: 2,085,352,906.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,492,993,000.45 : 2,085,352,906.55 = 1,492,993,000.45 : x
  2. Step 2: Convert to fraction form
    1,492,993,000.45/2,085,352,906.55 = 1,492,993,000.45/x
  3. Step 3: Cross multiply
    1,492,993,000.45x = 2,085,352,906.55 × 1,492,993,000.45
  4. Step 4: Simplify right side
    1,492,993,000.45x = 3,113,417,292,947,212,800
  5. Step 5: Solve for x
    x = 3,113,417,292,947,212,800/1,492,993,000.45
  6. Step 6: Final answer
    x = 2,085,352,906.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.