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Finding the Fourth Proportional to 366,920.10, 550,380.15 and 266,868.90

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Solution

The fourth proportional to 366,920.10, 550,380.15 and 266,868.90 is: 400,303.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,920.10 : 550,380.15 = 266,868.90 : x
  2. Step 2: Convert to fraction form
    366,920.10/550,380.15 = 266,868.90/x
  3. Step 3: Cross multiply
    366,920.10x = 550,380.15 × 266,868.90
  4. Step 4: Simplify right side
    366,920.10x = 146,879,345,212.34
  5. Step 5: Solve for x
    x = 146,879,345,212.34/366,920.10
  6. Step 6: Final answer
    x = 400,303.35

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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.