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Finding the Fourth Proportional to 519,240.60, 727,986.60 and 519,240.60

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Solution

The fourth proportional to 519,240.60, 727,986.60 and 519,240.60 is: 727,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,240.60 : 727,986.60 = 519,240.60 : x
  2. Step 2: Convert to fraction form
    519,240.60/727,986.60 = 519,240.60/x
  3. Step 3: Cross multiply
    519,240.60x = 727,986.60 × 519,240.60
  4. Step 4: Simplify right side
    519,240.60x = 378,000,198,975.96
  5. Step 5: Solve for x
    x = 378,000,198,975.96/519,240.60
  6. Step 6: Final answer
    x = 727,986.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.