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Finding the Fourth Proportional to 574,490.68, 792,828.54 and 319,836.28

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Solution

The fourth proportional to 574,490.68, 792,828.54 and 319,836.28 is: 441,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,490.68 : 792,828.54 = 319,836.28 : x
  2. Step 2: Convert to fraction form
    574,490.68/792,828.54 = 319,836.28/x
  3. Step 3: Cross multiply
    574,490.68x = 792,828.54 × 319,836.28
  4. Step 4: Simplify right side
    574,490.68x = 253,575,330,911.43
  5. Step 5: Solve for x
    x = 253,575,330,911.43/574,490.68
  6. Step 6: Final answer
    x = 441,391.55

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