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Finding the Fourth Proportional to 607,526.80, 911,290.20 and 253,232.80

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Solution

The fourth proportional to 607,526.80, 911,290.20 and 253,232.80 is: 379,849.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,526.80 : 911,290.20 = 253,232.80 : x
  2. Step 2: Convert to fraction form
    607,526.80/911,290.20 = 253,232.80/x
  3. Step 3: Cross multiply
    607,526.80x = 911,290.20 × 253,232.80
  4. Step 4: Simplify right side
    607,526.80x = 230,768,568,958.56
  5. Step 5: Solve for x
    x = 230,768,568,958.56/607,526.80
  6. Step 6: Final answer
    x = 379,849.20

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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.