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Finding the Fourth Proportional to 525,703,401.60, 788,555,102.40 and 389,654,505.60

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Solution

The fourth proportional to 525,703,401.60, 788,555,102.40 and 389,654,505.60 is: 584,481,758.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,703,401.60 : 788,555,102.40 = 389,654,505.60 : x
  2. Step 2: Convert to fraction form
    525,703,401.60/788,555,102.40 = 389,654,505.60/x
  3. Step 3: Cross multiply
    525,703,401.60x = 788,555,102.40 × 389,654,505.60
  4. Step 4: Simplify right side
    525,703,401.60x = 307,264,048,564,029,376
  5. Step 5: Solve for x
    x = 307,264,048,564,029,376/525,703,401.60
  6. Step 6: Final answer
    x = 584,481,758.40

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