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Finding the Fourth Proportional to 428,009.90, 590,672.23 and 237,023.29

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Solution

The fourth proportional to 428,009.90, 590,672.23 and 237,023.29 is: 327,102.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,009.90 : 590,672.23 = 237,023.29 : x
  2. Step 2: Convert to fraction form
    428,009.90/590,672.23 = 237,023.29/x
  3. Step 3: Cross multiply
    428,009.90x = 590,672.23 × 237,023.29
  4. Step 4: Simplify right side
    428,009.90x = 140,003,075,266.24
  5. Step 5: Solve for x
    x = 140,003,075,266.24/428,009.90
  6. Step 6: Final answer
    x = 327,102.42

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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.