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Finding the Fourth Proportional to 946,728,010.40, 1,420,092,015.60 and 946,728,010.40

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Solution

The fourth proportional to 946,728,010.40, 1,420,092,015.60 and 946,728,010.40 is: 1,420,092,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    946,728,010.40 : 1,420,092,015.60 = 946,728,010.40 : x
  2. Step 2: Convert to fraction form
    946,728,010.40/1,420,092,015.60 = 946,728,010.40/x
  3. Step 3: Cross multiply
    946,728,010.40x = 1,420,092,015.60 × 946,728,010.40
  4. Step 4: Simplify right side
    946,728,010.40x = 1,344,440,888,513,913,600
  5. Step 5: Solve for x
    x = 1,344,440,888,513,913,600/946,728,010.40
  6. Step 6: Final answer
    x = 1,420,092,015.60

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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.