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Finding the Fourth Proportional to 633,384.59, 874,054 and 361,447.61

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Solution

The fourth proportional to 633,384.59, 874,054 and 361,447.61 is: 498,788.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,384.59 : 874,054 = 361,447.61 : x
  2. Step 2: Convert to fraction form
    633,384.59/874,054 = 361,447.61/x
  3. Step 3: Cross multiply
    633,384.59x = 874,054 × 361,447.61
  4. Step 4: Simplify right side
    633,384.59x = 315,924,729,310.94
  5. Step 5: Solve for x
    x = 315,924,729,310.94/633,384.59
  6. Step 6: Final answer
    x = 498,788.15

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1.5x scale

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.