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Finding the Fourth Proportional to 589,308.70, 884,027.85 and 215,412.70

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Solution

The fourth proportional to 589,308.70, 884,027.85 and 215,412.70 is: 323,142.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,308.70 : 884,027.85 = 215,412.70 : x
  2. Step 2: Convert to fraction form
    589,308.70/884,027.85 = 215,412.70/x
  3. Step 3: Cross multiply
    589,308.70x = 884,027.85 × 215,412.70
  4. Step 4: Simplify right side
    589,308.70x = 190,430,826,043.70
  5. Step 5: Solve for x
    x = 190,430,826,043.70/589,308.70
  6. Step 6: Final answer
    x = 323,142.74

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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.