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Finding the Fourth Proportional to 453,818.45, 626,264.31 and 249,865.21

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Solution

The fourth proportional to 453,818.45, 626,264.31 and 249,865.21 is: 344,811.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,818.45 : 626,264.31 = 249,865.21 : x
  2. Step 2: Convert to fraction form
    453,818.45/626,264.31 = 249,865.21/x
  3. Step 3: Cross multiply
    453,818.45x = 626,264.31 × 249,865.21
  4. Step 4: Simplify right side
    453,818.45x = 156,481,660,125.25
  5. Step 5: Solve for x
    x = 156,481,660,125.25/453,818.45
  6. Step 6: Final answer
    x = 344,811.15

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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.