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Finding the Fourth Proportional to 538,464.60, 807,696.90 and 528,096.60

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Solution

The fourth proportional to 538,464.60, 807,696.90 and 528,096.60 is: 792,144.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,464.60 : 807,696.90 = 528,096.60 : x
  2. Step 2: Convert to fraction form
    538,464.60/807,696.90 = 528,096.60/x
  3. Step 3: Cross multiply
    538,464.60x = 807,696.90 × 528,096.60
  4. Step 4: Simplify right side
    538,464.60x = 426,541,986,720.54
  5. Step 5: Solve for x
    x = 426,541,986,720.54/538,464.60
  6. Step 6: Final answer
    x = 792,144.90

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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.