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Finding the Fourth Proportional to 589,328.70, 884,057.85 and 215,432.70

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Solution

The fourth proportional to 589,328.70, 884,057.85 and 215,432.70 is: 323,172.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,328.70 : 884,057.85 = 215,432.70 : x
  2. Step 2: Convert to fraction form
    589,328.70/884,057.85 = 215,432.70/x
  3. Step 3: Cross multiply
    589,328.70x = 884,057.85 × 215,432.70
  4. Step 4: Simplify right side
    589,328.70x = 190,454,969,581.70
  5. Step 5: Solve for x
    x = 190,454,969,581.70/589,328.70
  6. Step 6: Final answer
    x = 323,172.74

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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.