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Finding the Fourth Proportional to 559,383.40, 838,571.28 and 204,148.18

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Solution

The fourth proportional to 559,383.40, 838,571.28 and 204,148.18 is: 306,038.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,383.40 : 838,571.28 = 204,148.18 : x
  2. Step 2: Convert to fraction form
    559,383.40/838,571.28 = 204,148.18/x
  3. Step 3: Cross multiply
    559,383.40x = 838,571.28 × 204,148.18
  4. Step 4: Simplify right side
    559,383.40x = 171,192,800,612.27
  5. Step 5: Solve for x
    x = 171,192,800,612.27/559,383.40
  6. Step 6: Final answer
    x = 306,038.40

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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.