Home / 769,619.80-1,154,429.70-437,843.80

Finding the Fourth Proportional to 769,619.80, 1,154,429.70 and 437,843.80

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Solution

The fourth proportional to 769,619.80, 1,154,429.70 and 437,843.80 is: 656,765.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,619.80 : 1,154,429.70 = 437,843.80 : x
  2. Step 2: Convert to fraction form
    769,619.80/1,154,429.70 = 437,843.80/x
  3. Step 3: Cross multiply
    769,619.80x = 1,154,429.70 × 437,843.80
  4. Step 4: Simplify right side
    769,619.80x = 505,459,886,680.86
  5. Step 5: Solve for x
    x = 505,459,886,680.86/769,619.80
  6. Step 6: Final answer
    x = 656,765.70

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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.