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Finding the Fourth Proportional to 982,823,608.65, 1,355,398,318.29 and 768,270,598.65

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Solution

The fourth proportional to 982,823,608.65, 1,355,398,318.29 and 768,270,598.65 is: 1,059,511,257.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    982,823,608.65 : 1,355,398,318.29 = 768,270,598.65 : x
  2. Step 2: Convert to fraction form
    982,823,608.65/1,355,398,318.29 = 768,270,598.65/x
  3. Step 3: Cross multiply
    982,823,608.65x = 1,355,398,318.29 × 768,270,598.65
  4. Step 4: Simplify right side
    982,823,608.65x = 1,041,312,677,401,861,504
  5. Step 5: Solve for x
    x = 1,041,312,677,401,861,504/982,823,608.65
  6. Step 6: Final answer
    x = 1,059,511,257.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.