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Finding the Fourth Proportional to 206,876,715,815.20, 310,315,073,722.80 and 206,876,715,815.20

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Solution

The fourth proportional to 206,876,715,815.20, 310,315,073,722.80 and 206,876,715,815.20 is: 310,315,073,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,876,715,815.20 : 310,315,073,722.80 = 206,876,715,815.20 : x
  2. Step 2: Convert to fraction form
    206,876,715,815.20/310,315,073,722.80 = 206,876,715,815.20/x
  3. Step 3: Cross multiply
    206,876,715,815.20x = 310,315,073,722.80 × 206,876,715,815.20
  4. Step 4: Simplify right side
    206,876,715,815.20x = 64,196,963,319,724,533,350,400
  5. Step 5: Solve for x
    x = 64,196,963,319,724,533,350,400/206,876,715,815.20
  6. Step 6: Final answer
    x = 310,315,073,722.80

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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.