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Finding the Fourth Proportional to 439,754.86, 607,240.46 and 276,683.26

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Solution

The fourth proportional to 439,754.86, 607,240.46 and 276,683.26 is: 382,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,754.86 : 607,240.46 = 276,683.26 : x
  2. Step 2: Convert to fraction form
    439,754.86/607,240.46 = 276,683.26/x
  3. Step 3: Cross multiply
    439,754.86x = 607,240.46 × 276,683.26
  4. Step 4: Simplify right side
    439,754.86x = 168,013,270,076.70
  5. Step 5: Solve for x
    x = 168,013,270,076.70/439,754.86
  6. Step 6: Final answer
    x = 382,061.20

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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.