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Finding the Fourth Proportional to 804,936.60, 1,208,787.30 and 569,928.60

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Solution

The fourth proportional to 804,936.60, 1,208,787.30 and 569,928.60 is: 855,871.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,936.60 : 1,208,787.30 = 569,928.60 : x
  2. Step 2: Convert to fraction form
    804,936.60/1,208,787.30 = 569,928.60/x
  3. Step 3: Cross multiply
    804,936.60x = 1,208,787.30 × 569,928.60
  4. Step 4: Simplify right side
    804,936.60x = 688,922,453,586.78
  5. Step 5: Solve for x
    x = 688,922,453,586.78/804,936.60
  6. Step 6: Final answer
    x = 855,871.70

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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.