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Finding the Fourth Proportional to 595,323.20, 821,560.80 and 323,391

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Solution

The fourth proportional to 595,323.20, 821,560.80 and 323,391 is: 446,287.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,323.20 : 821,560.80 = 323,391 : x
  2. Step 2: Convert to fraction form
    595,323.20/821,560.80 = 323,391/x
  3. Step 3: Cross multiply
    595,323.20x = 821,560.80 × 323,391
  4. Step 4: Simplify right side
    595,323.20x = 265,685,368,672.80
  5. Step 5: Solve for x
    x = 265,685,368,672.80/595,323.20
  6. Step 6: Final answer
    x = 446,287.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.