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Finding the Fourth Proportional to 581,493.21, 802,343 and 339,729.08

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Solution

The fourth proportional to 581,493.21, 802,343 and 339,729.08 is: 468,757.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,493.21 : 802,343 = 339,729.08 : x
  2. Step 2: Convert to fraction form
    581,493.21/802,343 = 339,729.08/x
  3. Step 3: Cross multiply
    581,493.21x = 802,343 × 339,729.08
  4. Step 4: Simplify right side
    581,493.21x = 272,579,249,234.44
  5. Step 5: Solve for x
    x = 272,579,249,234.44/581,493.21
  6. Step 6: Final answer
    x = 468,757.41

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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.