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Finding the Fourth Proportional to 452,736.28, 679,399.28 and 172,255.96

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Solution

The fourth proportional to 452,736.28, 679,399.28 and 172,255.96 is: 258,496.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,736.28 : 679,399.28 = 172,255.96 : x
  2. Step 2: Convert to fraction form
    452,736.28/679,399.28 = 172,255.96/x
  3. Step 3: Cross multiply
    452,736.28x = 679,399.28 × 172,255.96
  4. Step 4: Simplify right side
    452,736.28x = 117,030,575,199.71
  5. Step 5: Solve for x
    x = 117,030,575,199.71/452,736.28
  6. Step 6: Final answer
    x = 258,496.13

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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.