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Finding the Fourth Proportional to 453,808.10, 626,449.01 and 323,070.17

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Solution

The fourth proportional to 453,808.10, 626,449.01 and 323,070.17 is: 445,974.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,808.10 : 626,449.01 = 323,070.17 : x
  2. Step 2: Convert to fraction form
    453,808.10/626,449.01 = 323,070.17/x
  3. Step 3: Cross multiply
    453,808.10x = 626,449.01 × 323,070.17
  4. Step 4: Simplify right side
    453,808.10x = 202,386,988,157.03
  5. Step 5: Solve for x
    x = 202,386,988,157.03/453,808.10
  6. Step 6: Final answer
    x = 445,974.83

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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.