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Finding the Fourth Proportional to 574,529.13, 792,874.71 and 319,880.25

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Solution

The fourth proportional to 574,529.13, 792,874.71 and 319,880.25 is: 441,448.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,529.13 : 792,874.71 = 319,880.25 : x
  2. Step 2: Convert to fraction form
    574,529.13/792,874.71 = 319,880.25/x
  3. Step 3: Cross multiply
    574,529.13x = 792,874.71 × 319,880.25
  4. Step 4: Simplify right side
    574,529.13x = 253,624,960,453.48
  5. Step 5: Solve for x
    x = 253,624,960,453.48/574,529.13
  6. Step 6: Final answer
    x = 441,448.39

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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.