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Finding the Fourth Proportional to 361,587.52, 542,328.94 and 253,188.01

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Solution

The fourth proportional to 361,587.52, 542,328.94 and 253,188.01 is: 379,745.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,587.52 : 542,328.94 = 253,188.01 : x
  2. Step 2: Convert to fraction form
    361,587.52/542,328.94 = 253,188.01/x
  3. Step 3: Cross multiply
    361,587.52x = 542,328.94 × 253,188.01
  4. Step 4: Simplify right side
    361,587.52x = 137,311,185,084.01
  5. Step 5: Solve for x
    x = 137,311,185,084.01/361,587.52
  6. Step 6: Final answer
    x = 379,745.37

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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.