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Finding the Fourth Proportional to 583,428.60, 873,198.90 and 423,048.60

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Solution

The fourth proportional to 583,428.60, 873,198.90 and 423,048.60 is: 633,163.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,428.60 : 873,198.90 = 423,048.60 : x
  2. Step 2: Convert to fraction form
    583,428.60/873,198.90 = 423,048.60/x
  3. Step 3: Cross multiply
    583,428.60x = 873,198.90 × 423,048.60
  4. Step 4: Simplify right side
    583,428.60x = 369,405,572,166.54
  5. Step 5: Solve for x
    x = 369,405,572,166.54/583,428.60
  6. Step 6: Final answer
    x = 633,163.29

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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.