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Finding the Fourth Proportional to 525,401,076.80, 788,101,615.20 and 332,169,129.20

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Solution

The fourth proportional to 525,401,076.80, 788,101,615.20 and 332,169,129.20 is: 498,253,693.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,401,076.80 : 788,101,615.20 = 332,169,129.20 : x
  2. Step 2: Convert to fraction form
    525,401,076.80/788,101,615.20 = 332,169,129.20/x
  3. Step 3: Cross multiply
    525,401,076.80x = 788,101,615.20 × 332,169,129.20
  4. Step 4: Simplify right side
    525,401,076.80x = 261,783,027,242,097,504
  5. Step 5: Solve for x
    x = 261,783,027,242,097,504/525,401,076.80
  6. Step 6: Final answer
    x = 498,253,693.80

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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.