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Finding the Fourth Proportional to 389,833.18, 584,954.70 and 276,711.01

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Solution

The fourth proportional to 389,833.18, 584,954.70 and 276,711.01 is: 415,211.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,833.18 : 584,954.70 = 276,711.01 : x
  2. Step 2: Convert to fraction form
    389,833.18/584,954.70 = 276,711.01/x
  3. Step 3: Cross multiply
    389,833.18x = 584,954.70 × 276,711.01
  4. Step 4: Simplify right side
    389,833.18x = 161,863,405,841.25
  5. Step 5: Solve for x
    x = 161,863,405,841.25/389,833.18
  6. Step 6: Final answer
    x = 415,211.98

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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.