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Finding the Fourth Proportional to 5,519,243,999.40, 8,278,865,999.10 and 5,519,243,999.40

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Solution

The fourth proportional to 5,519,243,999.40, 8,278,865,999.10 and 5,519,243,999.40 is: 8,278,865,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519,243,999.40 : 8,278,865,999.10 = 5,519,243,999.40 : x
  2. Step 2: Convert to fraction form
    5,519,243,999.40/8,278,865,999.10 = 5,519,243,999.40/x
  3. Step 3: Cross multiply
    5,519,243,999.40x = 8,278,865,999.10 × 5,519,243,999.40
  4. Step 4: Simplify right side
    5,519,243,999.40x = 45,693,081,487,369,363,456
  5. Step 5: Solve for x
    x = 45,693,081,487,369,363,456/5,519,243,999.40
  6. Step 6: Final answer
    x = 8,278,865,999.10

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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.