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Finding the Fourth Proportional to 553,802,735.84, 764,483,101.98 and 345,062,011.28

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Solution

The fourth proportional to 553,802,735.84, 764,483,101.98 and 345,062,011.28 is: 476,332,202.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,802,735.84 : 764,483,101.98 = 345,062,011.28 : x
  2. Step 2: Convert to fraction form
    553,802,735.84/764,483,101.98 = 345,062,011.28/x
  3. Step 3: Cross multiply
    553,802,735.84x = 764,483,101.98 × 345,062,011.28
  4. Step 4: Simplify right side
    553,802,735.84x = 263,794,076,758,792,128
  5. Step 5: Solve for x
    x = 263,794,076,758,792,128/553,802,735.84
  6. Step 6: Final answer
    x = 476,332,202.22

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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.