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Finding the Fourth Proportional to 503,740.80, 755,611.20 and 503,740.80

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Solution

The fourth proportional to 503,740.80, 755,611.20 and 503,740.80 is: 755,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,740.80 : 755,611.20 = 503,740.80 : x
  2. Step 2: Convert to fraction form
    503,740.80/755,611.20 = 503,740.80/x
  3. Step 3: Cross multiply
    503,740.80x = 755,611.20 × 503,740.80
  4. Step 4: Simplify right side
    503,740.80x = 380,632,190,376.96
  5. Step 5: Solve for x
    x = 380,632,190,376.96/503,740.80
  6. Step 6: Final answer
    x = 755,611.20

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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.