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Finding the Fourth Proportional to 256,063.21, 384,936.20 and 237,566.66

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Solution

The fourth proportional to 256,063.21, 384,936.20 and 237,566.66 is: 357,130.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,063.21 : 384,936.20 = 237,566.66 : x
  2. Step 2: Convert to fraction form
    256,063.21/384,936.20 = 237,566.66/x
  3. Step 3: Cross multiply
    256,063.21x = 384,936.20 × 237,566.66
  4. Step 4: Simplify right side
    256,063.21x = 91,448,005,125.45
  5. Step 5: Solve for x
    x = 91,448,005,125.45/256,063.21
  6. Step 6: Final answer
    x = 357,130.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.