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Finding the Fourth Proportional to 355,801.60, 532,406.40 and 262,489.60

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Solution

The fourth proportional to 355,801.60, 532,406.40 and 262,489.60 is: 392,778.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,801.60 : 532,406.40 = 262,489.60 : x
  2. Step 2: Convert to fraction form
    355,801.60/532,406.40 = 262,489.60/x
  3. Step 3: Cross multiply
    355,801.60x = 532,406.40 × 262,489.60
  4. Step 4: Simplify right side
    355,801.60x = 139,751,142,973.44
  5. Step 5: Solve for x
    x = 139,751,142,973.44/355,801.60
  6. Step 6: Final answer
    x = 392,778.29

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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.