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Finding the Fourth Proportional to 572,754.96, 790,390.44 and 318,097.44

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Solution

The fourth proportional to 572,754.96, 790,390.44 and 318,097.44 is: 438,968.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,754.96 : 790,390.44 = 318,097.44 : x
  2. Step 2: Convert to fraction form
    572,754.96/790,390.44 = 318,097.44/x
  3. Step 3: Cross multiply
    572,754.96x = 790,390.44 × 318,097.44
  4. Step 4: Simplify right side
    572,754.96x = 251,421,175,564.47
  5. Step 5: Solve for x
    x = 251,421,175,564.47/572,754.96
  6. Step 6: Final answer
    x = 438,968.13

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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.