Home / 919,173.39-1,378,758.03-437,940.45

Finding the Fourth Proportional to 919,173.39, 1,378,758.03 and 437,940.45

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Solution

The fourth proportional to 919,173.39, 1,378,758.03 and 437,940.45 is: 656,909.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,173.39 : 1,378,758.03 = 437,940.45 : x
  2. Step 2: Convert to fraction form
    919,173.39/1,378,758.03 = 437,940.45/x
  3. Step 3: Cross multiply
    919,173.39x = 1,378,758.03 × 437,940.45
  4. Step 4: Simplify right side
    919,173.39x = 603,813,912,099.31
  5. Step 5: Solve for x
    x = 603,813,912,099.31/919,173.39
  6. Step 6: Final answer
    x = 656,909.70

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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.