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Finding the Fourth Proportional to 589,324.70, 884,051.85 and 215,428.70

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Solution

The fourth proportional to 589,324.70, 884,051.85 and 215,428.70 is: 323,166.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,324.70 : 884,051.85 = 215,428.70 : x
  2. Step 2: Convert to fraction form
    589,324.70/884,051.85 = 215,428.70/x
  3. Step 3: Cross multiply
    589,324.70x = 884,051.85 × 215,428.70
  4. Step 4: Simplify right side
    589,324.70x = 190,450,140,778.10
  5. Step 5: Solve for x
    x = 190,450,140,778.10/589,324.70
  6. Step 6: Final answer
    x = 323,166.74

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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.