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Finding the Fourth Proportional to 520,062.60, 780,093.90 and 520,062.60

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Solution

The fourth proportional to 520,062.60, 780,093.90 and 520,062.60 is: 780,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,062.60 : 780,093.90 = 520,062.60 : x
  2. Step 2: Convert to fraction form
    520,062.60/780,093.90 = 520,062.60/x
  3. Step 3: Cross multiply
    520,062.60x = 780,093.90 × 520,062.60
  4. Step 4: Simplify right side
    520,062.60x = 405,697,661,878.14
  5. Step 5: Solve for x
    x = 405,697,661,878.14/520,062.60
  6. Step 6: Final answer
    x = 780,093.90

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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.