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Finding the Fourth Proportional to 574,721.89, 793,085.04 and 316,548.60

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Solution

The fourth proportional to 574,721.89, 793,085.04 and 316,548.60 is: 436,819.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,721.89 : 793,085.04 = 316,548.60 : x
  2. Step 2: Convert to fraction form
    574,721.89/793,085.04 = 316,548.60/x
  3. Step 3: Cross multiply
    574,721.89x = 793,085.04 × 316,548.60
  4. Step 4: Simplify right side
    574,721.89x = 251,049,956,118.88
  5. Step 5: Solve for x
    x = 251,049,956,118.88/574,721.89
  6. Step 6: Final answer
    x = 436,819.90

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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.