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Finding the Fourth Proportional to 692,653,727.96, 955,828,048.36 and 379,389,335.12

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Solution

The fourth proportional to 692,653,727.96, 955,828,048.36 and 379,389,335.12 is: 523,538,606.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,653,727.96 : 955,828,048.36 = 379,389,335.12 : x
  2. Step 2: Convert to fraction form
    692,653,727.96/955,828,048.36 = 379,389,335.12/x
  3. Step 3: Cross multiply
    692,653,727.96x = 955,828,048.36 × 379,389,335.12
  4. Step 4: Simplify right side
    692,653,727.96x = 362,630,967,756,347,648
  5. Step 5: Solve for x
    x = 362,630,967,756,347,648/692,653,727.96
  6. Step 6: Final answer
    x = 523,538,606.84

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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.