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Finding the Fourth Proportional to 323,367.66, 485,300.49 and 260,341.95

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Solution

The fourth proportional to 323,367.66, 485,300.49 and 260,341.95 is: 390,713.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,367.66 : 485,300.49 = 260,341.95 : x
  2. Step 2: Convert to fraction form
    323,367.66/485,300.49 = 260,341.95/x
  3. Step 3: Cross multiply
    323,367.66x = 485,300.49 × 260,341.95
  4. Step 4: Simplify right side
    323,367.66x = 126,344,075,902.56
  5. Step 5: Solve for x
    x = 126,344,075,902.56/323,367.66
  6. Step 6: Final answer
    x = 390,713.39

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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.