Home / 381,118.20-525,942.96-211,352.34

Finding the Fourth Proportional to 381,118.20, 525,942.96 and 211,352.34

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Solution

The fourth proportional to 381,118.20, 525,942.96 and 211,352.34 is: 291,666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,118.20 : 525,942.96 = 211,352.34 : x
  2. Step 2: Convert to fraction form
    381,118.20/525,942.96 = 211,352.34/x
  3. Step 3: Cross multiply
    381,118.20x = 525,942.96 × 211,352.34
  4. Step 4: Simplify right side
    381,118.20x = 111,159,275,302.53
  5. Step 5: Solve for x
    x = 111,159,275,302.53/381,118.20
  6. Step 6: Final answer
    x = 291,666.14

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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.