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Finding the Fourth Proportional to 567,492.20, 783,099.99 and 319,171.33

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Solution

The fourth proportional to 567,492.20, 783,099.99 and 319,171.33 is: 440,434.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,492.20 : 783,099.99 = 319,171.33 : x
  2. Step 2: Convert to fraction form
    567,492.20/783,099.99 = 319,171.33/x
  3. Step 3: Cross multiply
    567,492.20x = 783,099.99 × 319,171.33
  4. Step 4: Simplify right side
    567,492.20x = 249,943,065,331.29
  5. Step 5: Solve for x
    x = 249,943,065,331.29/567,492.20
  6. Step 6: Final answer
    x = 440,434.37

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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.