Home / 773,212,000.61-1,067,257,406.75-505,328,131.79

Finding the Fourth Proportional to 773,212,000.61, 1,067,257,406.75 and 505,328,131.79

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Solution

The fourth proportional to 773,212,000.61, 1,067,257,406.75 and 505,328,131.79 is: 697,499,768.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,212,000.61 : 1,067,257,406.75 = 505,328,131.79 : x
  2. Step 2: Convert to fraction form
    773,212,000.61/1,067,257,406.75 = 505,328,131.79/x
  3. Step 3: Cross multiply
    773,212,000.61x = 1,067,257,406.75 × 505,328,131.79
  4. Step 4: Simplify right side
    773,212,000.61x = 539,315,191,484,154,752
  5. Step 5: Solve for x
    x = 539,315,191,484,154,752/773,212,000.61
  6. Step 6: Final answer
    x = 697,499,768.58

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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.