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Finding the Fourth Proportional to 888,381.44, 1,225,968 and 485,973.44

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Solution

The fourth proportional to 888,381.44, 1,225,968 and 485,973.44 is: 670,644.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,381.44 : 1,225,968 = 485,973.44 : x
  2. Step 2: Convert to fraction form
    888,381.44/1,225,968 = 485,973.44/x
  3. Step 3: Cross multiply
    888,381.44x = 1,225,968 × 485,973.44
  4. Step 4: Simplify right side
    888,381.44x = 595,787,886,289.92
  5. Step 5: Solve for x
    x = 595,787,886,289.92/888,381.44
  6. Step 6: Final answer
    x = 670,644.23

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1.5x scale

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.