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Finding the Fourth Proportional to 399,480,400, 599,220,600 and 112,266,064

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Solution

The fourth proportional to 399,480,400, 599,220,600 and 112,266,064 is: 168,399,096

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,480,400 : 599,220,600 = 112,266,064 : x
  2. Step 2: Convert to fraction form
    399,480,400/599,220,600 = 112,266,064/x
  3. Step 3: Cross multiply
    399,480,400x = 599,220,600 × 112,266,064
  4. Step 4: Simplify right side
    399,480,400x = 67,272,138,229,718,400
  5. Step 5: Solve for x
    x = 67,272,138,229,718,400/399,480,400
  6. Step 6: Final answer
    x = 168,399,096

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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.