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Finding the Fourth Proportional to 366,910.15, 550,365.23 and 260,621.95

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Solution

The fourth proportional to 366,910.15, 550,365.23 and 260,621.95 is: 390,932.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,910.15 : 550,365.23 = 260,621.95 : x
  2. Step 2: Convert to fraction form
    366,910.15/550,365.23 = 260,621.95/x
  3. Step 3: Cross multiply
    366,910.15x = 550,365.23 × 260,621.95
  4. Step 4: Simplify right side
    366,910.15x = 143,437,259,454.80
  5. Step 5: Solve for x
    x = 143,437,259,454.80/366,910.15
  6. Step 6: Final answer
    x = 390,932.93

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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.