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Finding the Fourth Proportional to 441,427.60, 661,752.60 and 264,005.20

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Solution

The fourth proportional to 441,427.60, 661,752.60 and 264,005.20 is: 395,775.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,427.60 : 661,752.60 = 264,005.20 : x
  2. Step 2: Convert to fraction form
    441,427.60/661,752.60 = 264,005.20/x
  3. Step 3: Cross multiply
    441,427.60x = 661,752.60 × 264,005.20
  4. Step 4: Simplify right side
    441,427.60x = 174,706,127,513.52
  5. Step 5: Solve for x
    x = 174,706,127,513.52/441,427.60
  6. Step 6: Final answer
    x = 395,775.27

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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.