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Finding the Fourth Proportional to 574,598.28, 792,929.37 and 312,947.64

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Solution

The fourth proportional to 574,598.28, 792,929.37 and 312,947.64 is: 431,858.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,598.28 : 792,929.37 = 312,947.64 : x
  2. Step 2: Convert to fraction form
    574,598.28/792,929.37 = 312,947.64/x
  3. Step 3: Cross multiply
    574,598.28x = 792,929.37 × 312,947.64
  4. Step 4: Simplify right side
    574,598.28x = 248,145,375,028.19
  5. Step 5: Solve for x
    x = 248,145,375,028.19/574,598.28
  6. Step 6: Final answer
    x = 431,858.89

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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.