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Finding the Fourth Proportional to 375,409.82, 518,073.91 and 214,261.61

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Solution

The fourth proportional to 375,409.82, 518,073.91 and 214,261.61 is: 295,685.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,409.82 : 518,073.91 = 214,261.61 : x
  2. Step 2: Convert to fraction form
    375,409.82/518,073.91 = 214,261.61/x
  3. Step 3: Cross multiply
    375,409.82x = 518,073.91 × 214,261.61
  4. Step 4: Simplify right side
    375,409.82x = 111,003,346,929.57
  5. Step 5: Solve for x
    x = 111,003,346,929.57/375,409.82
  6. Step 6: Final answer
    x = 295,685.78

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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.