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Finding the Fourth Proportional to 484,978,666.60, 727,467,999.90 and 484,978,666.60

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Solution

The fourth proportional to 484,978,666.60, 727,467,999.90 and 484,978,666.60 is: 727,467,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,978,666.60 : 727,467,999.90 = 484,978,666.60 : x
  2. Step 2: Convert to fraction form
    484,978,666.60/727,467,999.90 = 484,978,666.60/x
  3. Step 3: Cross multiply
    484,978,666.60x = 727,467,999.90 × 484,978,666.60
  4. Step 4: Simplify right side
    484,978,666.60x = 352,806,460,585,670,912
  5. Step 5: Solve for x
    x = 352,806,460,585,670,912/484,978,666.60
  6. Step 6: Final answer
    x = 727,467,999.90

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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.