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Finding the Fourth Proportional to 388,096,751.40, 582,145,127.10 and 388,096,751.40

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Solution

The fourth proportional to 388,096,751.40, 582,145,127.10 and 388,096,751.40 is: 582,145,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,096,751.40 : 582,145,127.10 = 388,096,751.40 : x
  2. Step 2: Convert to fraction form
    388,096,751.40/582,145,127.10 = 388,096,751.40/x
  3. Step 3: Cross multiply
    388,096,751.40x = 582,145,127.10 × 388,096,751.40
  4. Step 4: Simplify right side
    388,096,751.40x = 225,928,632,670,850,112
  5. Step 5: Solve for x
    x = 225,928,632,670,850,112/388,096,751.40
  6. Step 6: Final answer
    x = 582,145,127.10

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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.