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Finding the Fourth Proportional to 441,803.40, 662,686.61 and 142,277.36

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Solution

The fourth proportional to 441,803.40, 662,686.61 and 142,277.36 is: 213,410.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,803.40 : 662,686.61 = 142,277.36 : x
  2. Step 2: Convert to fraction form
    441,803.40/662,686.61 = 142,277.36/x
  3. Step 3: Cross multiply
    441,803.40x = 662,686.61 × 142,277.36
  4. Step 4: Simplify right side
    441,803.40x = 94,285,297,353.33
  5. Step 5: Solve for x
    x = 94,285,297,353.33/441,803.40
  6. Step 6: Final answer
    x = 213,410.08

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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.