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Finding the Fourth Proportional to 453,708.72, 626,120.22 and 249,780.12

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Solution

The fourth proportional to 453,708.72, 626,120.22 and 249,780.12 is: 344,697.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,708.72 : 626,120.22 = 249,780.12 : x
  2. Step 2: Convert to fraction form
    453,708.72/626,120.22 = 249,780.12/x
  3. Step 3: Cross multiply
    453,708.72x = 626,120.22 × 249,780.12
  4. Step 4: Simplify right side
    453,708.72x = 156,392,383,686.03
  5. Step 5: Solve for x
    x = 156,392,383,686.03/453,708.72
  6. Step 6: Final answer
    x = 344,697.77

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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.