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Finding the Fourth Proportional to 603,987.76, 905,981.82 and 177,523.66

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Solution

The fourth proportional to 603,987.76, 905,981.82 and 177,523.66 is: 266,285.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    603,987.76 : 905,981.82 = 177,523.66 : x
  2. Step 2: Convert to fraction form
    603,987.76/905,981.82 = 177,523.66/x
  3. Step 3: Cross multiply
    603,987.76x = 905,981.82 × 177,523.66
  4. Step 4: Simplify right side
    603,987.76x = 160,833,208,579.86
  5. Step 5: Solve for x
    x = 160,833,208,579.86/603,987.76
  6. Step 6: Final answer
    x = 266,285.54

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.