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Finding the Fourth Proportional to 324,038.55, 486,057.83 and 272,716.95

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Solution

The fourth proportional to 324,038.55, 486,057.83 and 272,716.95 is: 409,075.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,038.55 : 486,057.83 = 272,716.95 : x
  2. Step 2: Convert to fraction form
    324,038.55/486,057.83 = 272,716.95/x
  3. Step 3: Cross multiply
    324,038.55x = 486,057.83 × 272,716.95
  4. Step 4: Simplify right side
    324,038.55x = 132,556,207,557.63
  5. Step 5: Solve for x
    x = 132,556,207,557.63/324,038.55
  6. Step 6: Final answer
    x = 409,075.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.