Home / 353,977.20-530,965.80-117,327.60

Finding the Fourth Proportional to 353,977.20, 530,965.80 and 117,327.60

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Solution

The fourth proportional to 353,977.20, 530,965.80 and 117,327.60 is: 175,991.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,977.20 : 530,965.80 = 117,327.60 : x
  2. Step 2: Convert to fraction form
    353,977.20/530,965.80 = 117,327.60/x
  3. Step 3: Cross multiply
    353,977.20x = 530,965.80 × 117,327.60
  4. Step 4: Simplify right side
    353,977.20x = 62,296,942,996.08
  5. Step 5: Solve for x
    x = 62,296,942,996.08/353,977.20
  6. Step 6: Final answer
    x = 175,991.40

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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.