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Finding the Fourth Proportional to 578,833.60, 868,207.20 and 241,787.20

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Solution

The fourth proportional to 578,833.60, 868,207.20 and 241,787.20 is: 362,662.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,833.60 : 868,207.20 = 241,787.20 : x
  2. Step 2: Convert to fraction form
    578,833.60/868,207.20 = 241,787.20/x
  3. Step 3: Cross multiply
    578,833.60x = 868,207.20 × 241,787.20
  4. Step 4: Simplify right side
    578,833.60x = 209,921,387,907.84
  5. Step 5: Solve for x
    x = 209,921,387,907.84/578,833.60
  6. Step 6: Final answer
    x = 362,662.75

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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.