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Finding the Fourth Proportional to 393,660,116.80, 590,490,175.20 and 393,660,116.80

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Solution

The fourth proportional to 393,660,116.80, 590,490,175.20 and 393,660,116.80 is: 590,490,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,660,116.80 : 590,490,175.20 = 393,660,116.80 : x
  2. Step 2: Convert to fraction form
    393,660,116.80/590,490,175.20 = 393,660,116.80/x
  3. Step 3: Cross multiply
    393,660,116.80x = 590,490,175.20 × 393,660,116.80
  4. Step 4: Simplify right side
    393,660,116.80x = 232,452,431,338,484,480
  5. Step 5: Solve for x
    x = 232,452,431,338,484,480/393,660,116.80
  6. Step 6: Final answer
    x = 590,490,175.20

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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.