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Finding the Fourth Proportional to 574,499.84, 792,715.20 and 319,844.48

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Solution

The fourth proportional to 574,499.84, 792,715.20 and 319,844.48 is: 441,332.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,499.84 : 792,715.20 = 319,844.48 : x
  2. Step 2: Convert to fraction form
    574,499.84/792,715.20 = 319,844.48/x
  3. Step 3: Cross multiply
    574,499.84x = 792,715.20 × 319,844.48
  4. Step 4: Simplify right side
    574,499.84x = 253,545,580,932.10
  5. Step 5: Solve for x
    x = 253,545,580,932.10/574,499.84
  6. Step 6: Final answer
    x = 441,332.73

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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.