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Finding the Fourth Proportional to 399,893,393.70, 551,719,228.46 and 232,594,141.17

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Solution

The fourth proportional to 399,893,393.70, 551,719,228.46 and 232,594,141.17 is: 320,902,175.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,893,393.70 : 551,719,228.46 = 232,594,141.17 : x
  2. Step 2: Convert to fraction form
    399,893,393.70/551,719,228.46 = 232,594,141.17/x
  3. Step 3: Cross multiply
    399,893,393.70x = 551,719,228.46 × 232,594,141.17
  4. Step 4: Simplify right side
    399,893,393.70x = 128,326,660,110,628,720
  5. Step 5: Solve for x
    x = 128,326,660,110,628,720/399,893,393.70
  6. Step 6: Final answer
    x = 320,902,175.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.