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Finding the Fourth Proportional to 451,796,886.21, 677,982,012.21 and 193,014,053.22

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Solution

The fourth proportional to 451,796,886.21, 677,982,012.21 and 193,014,053.22 is: 289,643,554.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,796,886.21 : 677,982,012.21 = 193,014,053.22 : x
  2. Step 2: Convert to fraction form
    451,796,886.21/677,982,012.21 = 193,014,053.22/x
  3. Step 3: Cross multiply
    451,796,886.21x = 677,982,012.21 × 193,014,053.22
  4. Step 4: Simplify right side
    451,796,886.21x = 130,860,056,187,823,712
  5. Step 5: Solve for x
    x = 130,860,056,187,823,712/451,796,886.21
  6. Step 6: Final answer
    x = 289,643,554.84

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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.