Home / 389,623.53-537,675.20-217,544.14

Finding the Fourth Proportional to 389,623.53, 537,675.20 and 217,544.14

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Solution

The fourth proportional to 389,623.53, 537,675.20 and 217,544.14 is: 300,207.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,623.53 : 537,675.20 = 217,544.14 : x
  2. Step 2: Convert to fraction form
    389,623.53/537,675.20 = 217,544.14/x
  3. Step 3: Cross multiply
    389,623.53x = 537,675.20 × 217,544.14
  4. Step 4: Simplify right side
    389,623.53x = 116,968,089,383.49
  5. Step 5: Solve for x
    x = 116,968,089,383.49/389,623.53
  6. Step 6: Final answer
    x = 300,207.97

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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.