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Finding the Fourth Proportional to 428,045.85, 590,703.03 and 237,059.06

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Solution

The fourth proportional to 428,045.85, 590,703.03 and 237,059.06 is: 327,141.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,045.85 : 590,703.03 = 237,059.06 : x
  2. Step 2: Convert to fraction form
    428,045.85/590,703.03 = 237,059.06/x
  3. Step 3: Cross multiply
    428,045.85x = 590,703.03 × 237,059.06
  4. Step 4: Simplify right side
    428,045.85x = 140,031,502,077.44
  5. Step 5: Solve for x
    x = 140,031,502,077.44/428,045.85
  6. Step 6: Final answer
    x = 327,141.36

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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.