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Finding the Fourth Proportional to 5,280,741,185.30, 7,921,111,777.95 and 5,280,741,185.30

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Solution

The fourth proportional to 5,280,741,185.30, 7,921,111,777.95 and 5,280,741,185.30 is: 7,921,111,777.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280,741,185.30 : 7,921,111,777.95 = 5,280,741,185.30 : x
  2. Step 2: Convert to fraction form
    5,280,741,185.30/7,921,111,777.95 = 5,280,741,185.30/x
  3. Step 3: Cross multiply
    5,280,741,185.30x = 7,921,111,777.95 × 5,280,741,185.30
  4. Step 4: Simplify right side
    5,280,741,185.30x = 41,829,341,199,185,477,632
  5. Step 5: Solve for x
    x = 41,829,341,199,185,477,632/5,280,741,185.30
  6. Step 6: Final answer
    x = 7,921,111,777.95

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Double scale
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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.