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Finding the Fourth Proportional to 526,051.20, 789,076.80 and 193,756.80

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Solution

The fourth proportional to 526,051.20, 789,076.80 and 193,756.80 is: 290,635.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,051.20 : 789,076.80 = 193,756.80 : x
  2. Step 2: Convert to fraction form
    526,051.20/789,076.80 = 193,756.80/x
  3. Step 3: Cross multiply
    526,051.20x = 789,076.80 × 193,756.80
  4. Step 4: Simplify right side
    526,051.20x = 152,888,995,722.24
  5. Step 5: Solve for x
    x = 152,888,995,722.24/526,051.20
  6. Step 6: Final answer
    x = 290,635.20

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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.