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Finding the Fourth Proportional to 574,787.94, 793,231.70 and 320,139.11

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Solution

The fourth proportional to 574,787.94, 793,231.70 and 320,139.11 is: 441,805.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,787.94 : 793,231.70 = 320,139.11 : x
  2. Step 2: Convert to fraction form
    574,787.94/793,231.70 = 320,139.11/x
  3. Step 3: Cross multiply
    574,787.94x = 793,231.70 × 320,139.11
  4. Step 4: Simplify right side
    574,787.94x = 253,944,484,894.93
  5. Step 5: Solve for x
    x = 253,944,484,894.93/574,787.94
  6. Step 6: Final answer
    x = 441,805.52

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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.