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Finding the Fourth Proportional to 633,531.18, 874,054.49 and 361,402.77

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Solution

The fourth proportional to 633,531.18, 874,054.49 and 361,402.77 is: 498,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,531.18 : 874,054.49 = 361,402.77 : x
  2. Step 2: Convert to fraction form
    633,531.18/874,054.49 = 361,402.77/x
  3. Step 3: Cross multiply
    633,531.18x = 874,054.49 × 361,402.77
  4. Step 4: Simplify right side
    633,531.18x = 315,885,712,009.92
  5. Step 5: Solve for x
    x = 315,885,712,009.92/633,531.18
  6. Step 6: Final answer
    x = 498,611.15

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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.