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Finding the Fourth Proportional to 452,720.34, 623,963.25 and 331,604.28

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Solution

The fourth proportional to 452,720.34, 623,963.25 and 331,604.28 is: 457,034.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,720.34 : 623,963.25 = 331,604.28 : x
  2. Step 2: Convert to fraction form
    452,720.34/623,963.25 = 331,604.28/x
  3. Step 3: Cross multiply
    452,720.34x = 623,963.25 × 331,604.28
  4. Step 4: Simplify right side
    452,720.34x = 206,908,884,262.71
  5. Step 5: Solve for x
    x = 206,908,884,262.71/452,720.34
  6. Step 6: Final answer
    x = 457,034.65

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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.