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Finding the Fourth Proportional to 627,861,598.92, 866,531,512.56 and 360,042,239.16

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Solution

The fourth proportional to 627,861,598.92, 866,531,512.56 and 360,042,239.16 is: 496,905,602.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,861,598.92 : 866,531,512.56 = 360,042,239.16 : x
  2. Step 2: Convert to fraction form
    627,861,598.92/866,531,512.56 = 360,042,239.16/x
  3. Step 3: Cross multiply
    627,861,598.92x = 866,531,512.56 × 360,042,239.16
  4. Step 4: Simplify right side
    627,861,598.92x = 311,987,946,084,804,096
  5. Step 5: Solve for x
    x = 311,987,946,084,804,096/627,861,598.92
  6. Step 6: Final answer
    x = 496,905,602.48

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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.