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Finding the Fourth Proportional to 366,914.80, 550,372.20 and 130,281.40

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Solution

The fourth proportional to 366,914.80, 550,372.20 and 130,281.40 is: 195,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,914.80 : 550,372.20 = 130,281.40 : x
  2. Step 2: Convert to fraction form
    366,914.80/550,372.20 = 130,281.40/x
  3. Step 3: Cross multiply
    366,914.80x = 550,372.20 × 130,281.40
  4. Step 4: Simplify right side
    366,914.80x = 71,703,260,737.08
  5. Step 5: Solve for x
    x = 71,703,260,737.08/366,914.80
  6. Step 6: Final answer
    x = 195,422.10

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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.