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Finding the Fourth Proportional to 692,653,730.96, 955,828,052.50 and 379,389,338.12

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Solution

The fourth proportional to 692,653,730.96, 955,828,052.50 and 379,389,338.12 is: 523,538,610.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,653,730.96 : 955,828,052.50 = 379,389,338.12 : x
  2. Step 2: Convert to fraction form
    692,653,730.96/955,828,052.50 = 379,389,338.12/x
  3. Step 3: Cross multiply
    692,653,730.96x = 955,828,052.50 × 379,389,338.12
  4. Step 4: Simplify right side
    692,653,730.96x = 362,630,972,194,503,616
  5. Step 5: Solve for x
    x = 362,630,972,194,503,616/692,653,730.96
  6. Step 6: Final answer
    x = 523,538,610.98

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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.