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Finding the Fourth Proportional to 574,721.82, 793,084.90 and 316,548.50

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Solution

The fourth proportional to 574,721.82, 793,084.90 and 316,548.50 is: 436,819.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,721.82 : 793,084.90 = 316,548.50 : x
  2. Step 2: Convert to fraction form
    574,721.82/793,084.90 = 316,548.50/x
  3. Step 3: Cross multiply
    574,721.82x = 793,084.90 × 316,548.50
  4. Step 4: Simplify right side
    574,721.82x = 251,049,835,467.65
  5. Step 5: Solve for x
    x = 251,049,835,467.65/574,721.82
  6. Step 6: Final answer
    x = 436,819.74

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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.