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Finding the Fourth Proportional to 706,691,047.77, 975,214,638.27 and 393,425,255.25

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Solution

The fourth proportional to 706,691,047.77, 975,214,638.27 and 393,425,255.25 is: 542,916,270.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,691,047.77 : 975,214,638.27 = 393,425,255.25 : x
  2. Step 2: Convert to fraction form
    706,691,047.77/975,214,638.27 = 393,425,255.25/x
  3. Step 3: Cross multiply
    706,691,047.77x = 975,214,638.27 × 393,425,255.25
  4. Step 4: Simplify right side
    706,691,047.77x = 383,674,067,984,911,168
  5. Step 5: Solve for x
    x = 383,674,067,984,911,168/706,691,047.77
  6. Step 6: Final answer
    x = 542,916,270.41

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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.