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Finding the Fourth Proportional to 633,359.61, 874,019.16 and 361,422.63

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Solution

The fourth proportional to 633,359.61, 874,019.16 and 361,422.63 is: 498,753.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,359.61 : 874,019.16 = 361,422.63 : x
  2. Step 2: Convert to fraction form
    633,359.61/874,019.16 = 361,422.63/x
  3. Step 3: Cross multiply
    633,359.61x = 874,019.16 × 361,422.63
  4. Step 4: Simplify right side
    633,359.61x = 315,890,303,477.59
  5. Step 5: Solve for x
    x = 315,890,303,477.59/633,359.61
  6. Step 6: Final answer
    x = 498,753.47

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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.