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Finding the Fourth Proportional to 443,622.40, 664,558.80 and 265,600.60

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Solution

The fourth proportional to 443,622.40, 664,558.80 and 265,600.60 is: 397,877.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,622.40 : 664,558.80 = 265,600.60 : x
  2. Step 2: Convert to fraction form
    443,622.40/664,558.80 = 265,600.60/x
  3. Step 3: Cross multiply
    443,622.40x = 664,558.80 × 265,600.60
  4. Step 4: Simplify right side
    443,622.40x = 176,507,216,015.28
  5. Step 5: Solve for x
    x = 176,507,216,015.28/443,622.40
  6. Step 6: Final answer
    x = 397,877.15

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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.