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Finding the Fourth Proportional to 599,932.64, 828,115.53 and 345,385.28

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Solution

The fourth proportional to 599,932.64, 828,115.53 and 345,385.28 is: 476,751.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,932.64 : 828,115.53 = 345,385.28 : x
  2. Step 2: Convert to fraction form
    599,932.64/828,115.53 = 345,385.28/x
  3. Step 3: Cross multiply
    599,932.64x = 828,115.53 × 345,385.28
  4. Step 4: Simplify right side
    599,932.64x = 286,018,914,201.40
  5. Step 5: Solve for x
    x = 286,018,914,201.40/599,932.64
  6. Step 6: Final answer
    x = 476,751.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.