Home / 699,385.77-965,150.87-393,462.36

Finding the Fourth Proportional to 699,385.77, 965,150.87 and 393,462.36

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Solution

The fourth proportional to 699,385.77, 965,150.87 and 393,462.36 is: 542,977.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,385.77 : 965,150.87 = 393,462.36 : x
  2. Step 2: Convert to fraction form
    699,385.77/965,150.87 = 393,462.36/x
  3. Step 3: Cross multiply
    699,385.77x = 965,150.87 × 393,462.36
  4. Step 4: Simplify right side
    699,385.77x = 379,750,537,098.94
  5. Step 5: Solve for x
    x = 379,750,537,098.94/699,385.77
  6. Step 6: Final answer
    x = 542,977.21

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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.