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Finding the Fourth Proportional to 527,169.90, 727,478.91 and 297,736.59

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Solution

The fourth proportional to 527,169.90, 727,478.91 and 297,736.59 is: 410,867.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,169.90 : 727,478.91 = 297,736.59 : x
  2. Step 2: Convert to fraction form
    527,169.90/727,478.91 = 297,736.59/x
  3. Step 3: Cross multiply
    527,169.90x = 727,478.91 × 297,736.59
  4. Step 4: Simplify right side
    527,169.90x = 216,597,089,960.32
  5. Step 5: Solve for x
    x = 216,597,089,960.32/527,169.90
  6. Step 6: Final answer
    x = 410,867.71

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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.