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Finding the Fourth Proportional to 339,591.72, 508,546.81 and 249,420.60

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Solution

The fourth proportional to 339,591.72, 508,546.81 and 249,420.60 is: 373,513.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,591.72 : 508,546.81 = 249,420.60 : x
  2. Step 2: Convert to fraction form
    339,591.72/508,546.81 = 249,420.60/x
  3. Step 3: Cross multiply
    339,591.72x = 508,546.81 × 249,420.60
  4. Step 4: Simplify right side
    339,591.72x = 126,842,050,478.29
  5. Step 5: Solve for x
    x = 126,842,050,478.29/339,591.72
  6. Step 6: Final answer
    x = 373,513.38

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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.