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Finding the Fourth Proportional to 386,754.99, 533,713.61 and 214,662.93

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Solution

The fourth proportional to 386,754.99, 533,713.61 and 214,662.93 is: 296,230.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,754.99 : 533,713.61 = 214,662.93 : x
  2. Step 2: Convert to fraction form
    386,754.99/533,713.61 = 214,662.93/x
  3. Step 3: Cross multiply
    386,754.99x = 533,713.61 × 214,662.93
  4. Step 4: Simplify right side
    386,754.99x = 114,568,525,838.71
  5. Step 5: Solve for x
    x = 114,568,525,838.71/386,754.99
  6. Step 6: Final answer
    x = 296,230.25

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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.