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Finding the Fourth Proportional to 386,595.75, 533,735.42 and 252,693.03

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Solution

The fourth proportional to 386,595.75, 533,735.42 and 252,693.03 is: 348,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,595.75 : 533,735.42 = 252,693.03 : x
  2. Step 2: Convert to fraction form
    386,595.75/533,735.42 = 252,693.03/x
  3. Step 3: Cross multiply
    386,595.75x = 533,735.42 × 252,693.03
  4. Step 4: Simplify right side
    386,595.75x = 134,871,220,498.12
  5. Step 5: Solve for x
    x = 134,871,220,498.12/386,595.75
  6. Step 6: Final answer
    x = 348,868.86

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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.