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Finding the Fourth Proportional to 594,640.80, 891,961.20 and 395,229.60

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Solution

The fourth proportional to 594,640.80, 891,961.20 and 395,229.60 is: 592,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,640.80 : 891,961.20 = 395,229.60 : x
  2. Step 2: Convert to fraction form
    594,640.80/891,961.20 = 395,229.60/x
  3. Step 3: Cross multiply
    594,640.80x = 891,961.20 × 395,229.60
  4. Step 4: Simplify right side
    594,640.80x = 352,529,468,291.52
  5. Step 5: Solve for x
    x = 352,529,468,291.52/594,640.80
  6. Step 6: Final answer
    x = 592,844.40

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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.