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Finding the Fourth Proportional to 633,424.98, 874,116.62 and 361,485.89

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Solution

The fourth proportional to 633,424.98, 874,116.62 and 361,485.89 is: 498,844.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,424.98 : 874,116.62 = 361,485.89 : x
  2. Step 2: Convert to fraction form
    633,424.98/874,116.62 = 361,485.89/x
  3. Step 3: Cross multiply
    633,424.98x = 874,116.62 × 361,485.89
  4. Step 4: Simplify right side
    633,424.98x = 315,980,818,166.48
  5. Step 5: Solve for x
    x = 315,980,818,166.48/633,424.98
  6. Step 6: Final answer
    x = 498,844.90

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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.