Home / 381,086.04-525,890.70-211,316.52

Finding the Fourth Proportional to 381,086.04, 525,890.70 and 211,316.52

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Solution

The fourth proportional to 381,086.04, 525,890.70 and 211,316.52 is: 291,612.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,086.04 : 525,890.70 = 211,316.52 : x
  2. Step 2: Convert to fraction form
    381,086.04/525,890.70 = 211,316.52/x
  3. Step 3: Cross multiply
    381,086.04x = 525,890.70 × 211,316.52
  4. Step 4: Simplify right side
    381,086.04x = 111,129,392,624.36
  5. Step 5: Solve for x
    x = 111,129,392,624.36/381,086.04
  6. Step 6: Final answer
    x = 291,612.34

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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.