Home / 285,255.23-393,624.96-170,511.09

Finding the Fourth Proportional to 285,255.23, 393,624.96 and 170,511.09

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Solution

The fourth proportional to 285,255.23, 393,624.96 and 170,511.09 is: 235,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,255.23 : 393,624.96 = 170,511.09 : x
  2. Step 2: Convert to fraction form
    285,255.23/393,624.96 = 170,511.09/x
  3. Step 3: Cross multiply
    285,255.23x = 393,624.96 × 170,511.09
  4. Step 4: Simplify right side
    285,255.23x = 67,117,420,980.81
  5. Step 5: Solve for x
    x = 67,117,420,980.81/285,255.23
  6. Step 6: Final answer
    x = 235,289.01

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1.5x scale

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.