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Finding the Fourth Proportional to 266,984,233.80, 400,476,350.70 and 248,277,510.60

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Solution

The fourth proportional to 266,984,233.80, 400,476,350.70 and 248,277,510.60 is: 372,416,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,984,233.80 : 400,476,350.70 = 248,277,510.60 : x
  2. Step 2: Convert to fraction form
    266,984,233.80/400,476,350.70 = 248,277,510.60/x
  3. Step 3: Cross multiply
    266,984,233.80x = 400,476,350.70 × 248,277,510.60
  4. Step 4: Simplify right side
    266,984,233.80x = 99,429,271,405,968,560
  5. Step 5: Solve for x
    x = 99,429,271,405,968,560/266,984,233.80
  6. Step 6: Final answer
    x = 372,416,265.90

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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.