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Finding the Fourth Proportional to 384,966.70, 531,069.51 and 249,043.30

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Solution

The fourth proportional to 384,966.70, 531,069.51 and 249,043.30 is: 343,560.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,966.70 : 531,069.51 = 249,043.30 : x
  2. Step 2: Convert to fraction form
    384,966.70/531,069.51 = 249,043.30/x
  3. Step 3: Cross multiply
    384,966.70x = 531,069.51 × 249,043.30
  4. Step 4: Simplify right side
    384,966.70x = 132,259,303,299.78
  5. Step 5: Solve for x
    x = 132,259,303,299.78/384,966.70
  6. Step 6: Final answer
    x = 343,560.37

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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.