Home / 699,895.60-965,845.02-393,971.32

Finding the Fourth Proportional to 699,895.60, 965,845.02 and 393,971.32

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Solution

The fourth proportional to 699,895.60, 965,845.02 and 393,971.32 is: 543,674.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,895.60 : 965,845.02 = 393,971.32 : x
  2. Step 2: Convert to fraction form
    699,895.60/965,845.02 = 393,971.32/x
  3. Step 3: Cross multiply
    699,895.60x = 965,845.02 × 393,971.32
  4. Step 4: Simplify right side
    699,895.60x = 380,515,237,444.83
  5. Step 5: Solve for x
    x = 380,515,237,444.83/699,895.60
  6. Step 6: Final answer
    x = 543,674.28

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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.