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Finding the Fourth Proportional to 428,168.76, 590,872.90 and 237,194.52

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Solution

The fourth proportional to 428,168.76, 590,872.90 and 237,194.52 is: 327,328.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,168.76 : 590,872.90 = 237,194.52 : x
  2. Step 2: Convert to fraction form
    428,168.76/590,872.90 = 237,194.52/x
  3. Step 3: Cross multiply
    428,168.76x = 590,872.90 × 237,194.52
  4. Step 4: Simplify right side
    428,168.76x = 140,151,813,896.51
  5. Step 5: Solve for x
    x = 140,151,813,896.51/428,168.76
  6. Step 6: Final answer
    x = 327,328.44

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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.