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Finding the Fourth Proportional to 453,806.10, 626,446.25 and 323,068.17

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Solution

The fourth proportional to 453,806.10, 626,446.25 and 323,068.17 is: 445,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,806.10 : 626,446.25 = 323,068.17 : x
  2. Step 2: Convert to fraction form
    453,806.10/626,446.25 = 323,068.17/x
  3. Step 3: Cross multiply
    453,806.10x = 626,446.25 × 323,068.17
  4. Step 4: Simplify right side
    453,806.10x = 202,384,838,843.29
  5. Step 5: Solve for x
    x = 202,384,838,843.29/453,806.10
  6. Step 6: Final answer
    x = 445,972.05

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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.