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Finding the Fourth Proportional to 744,658,541.80, 1,116,987,812.70 and 664,304,662.60

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Solution

The fourth proportional to 744,658,541.80, 1,116,987,812.70 and 664,304,662.60 is: 996,456,993.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,658,541.80 : 1,116,987,812.70 = 664,304,662.60 : x
  2. Step 2: Convert to fraction form
    744,658,541.80/1,116,987,812.70 = 664,304,662.60/x
  3. Step 3: Cross multiply
    744,658,541.80x = 1,116,987,812.70 × 664,304,662.60
  4. Step 4: Simplify right side
    744,658,541.80x = 742,020,212,043,985,536
  5. Step 5: Solve for x
    x = 742,020,212,043,985,536/744,658,541.80
  6. Step 6: Final answer
    x = 996,456,993.90

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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.