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Finding the Fourth Proportional to 411,555.70, 617,333.55 and 366,940.90

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Solution

The fourth proportional to 411,555.70, 617,333.55 and 366,940.90 is: 550,411.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,555.70 : 617,333.55 = 366,940.90 : x
  2. Step 2: Convert to fraction form
    411,555.70/617,333.55 = 366,940.90/x
  3. Step 3: Cross multiply
    411,555.70x = 617,333.55 × 366,940.90
  4. Step 4: Simplify right side
    411,555.70x = 226,524,928,437.20
  5. Step 5: Solve for x
    x = 226,524,928,437.20/411,555.70
  6. Step 6: Final answer
    x = 550,411.35

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1.5x scale

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.