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Finding the Fourth Proportional to 453,903.54, 626,388.68 and 272,618.55

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Solution

The fourth proportional to 453,903.54, 626,388.68 and 272,618.55 is: 376,214.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,903.54 : 626,388.68 = 272,618.55 : x
  2. Step 2: Convert to fraction form
    453,903.54/626,388.68 = 272,618.55/x
  3. Step 3: Cross multiply
    453,903.54x = 626,388.68 × 272,618.55
  4. Step 4: Simplify right side
    453,903.54x = 170,765,172,314.92
  5. Step 5: Solve for x
    x = 170,765,172,314.92/453,903.54
  6. Step 6: Final answer
    x = 376,214.67

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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.