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Finding the Fourth Proportional to 358,462.80, 537,694.20 and 342,716.40

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Solution

The fourth proportional to 358,462.80, 537,694.20 and 342,716.40 is: 514,074.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,462.80 : 537,694.20 = 342,716.40 : x
  2. Step 2: Convert to fraction form
    358,462.80/537,694.20 = 342,716.40/x
  3. Step 3: Cross multiply
    358,462.80x = 537,694.20 × 342,716.40
  4. Step 4: Simplify right side
    358,462.80x = 184,276,620,524.88
  5. Step 5: Solve for x
    x = 184,276,620,524.88/358,462.80
  6. Step 6: Final answer
    x = 514,074.60

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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.