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Finding the Fourth Proportional to 356,344.88, 534,615.72 and 317,175.72

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Solution

The fourth proportional to 356,344.88, 534,615.72 and 317,175.72 is: 475,851.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,344.88 : 534,615.72 = 317,175.72 : x
  2. Step 2: Convert to fraction form
    356,344.88/534,615.72 = 317,175.72/x
  3. Step 3: Cross multiply
    356,344.88x = 534,615.72 × 317,175.72
  4. Step 4: Simplify right side
    356,344.88x = 169,567,125,914.32
  5. Step 5: Solve for x
    x = 169,567,125,914.32/356,344.88
  6. Step 6: Final answer
    x = 475,851.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.