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Finding the Fourth Proportional to 565,360.11, 780,378.75 and 361,958.85

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Solution

The fourth proportional to 565,360.11, 780,378.75 and 361,958.85 is: 499,619.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,360.11 : 780,378.75 = 361,958.85 : x
  2. Step 2: Convert to fraction form
    565,360.11/780,378.75 = 361,958.85/x
  3. Step 3: Cross multiply
    565,360.11x = 780,378.75 × 361,958.85
  4. Step 4: Simplify right side
    565,360.11x = 282,464,994,914.44
  5. Step 5: Solve for x
    x = 282,464,994,914.44/565,360.11
  6. Step 6: Final answer
    x = 499,619.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.