Home / 447,015.20-670,522.80-166,474.40

Finding the Fourth Proportional to 447,015.20, 670,522.80 and 166,474.40

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Solution

The fourth proportional to 447,015.20, 670,522.80 and 166,474.40 is: 249,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,015.20 : 670,522.80 = 166,474.40 : x
  2. Step 2: Convert to fraction form
    447,015.20/670,522.80 = 166,474.40/x
  3. Step 3: Cross multiply
    447,015.20x = 670,522.80 × 166,474.40
  4. Step 4: Simplify right side
    447,015.20x = 111,624,880,816.32
  5. Step 5: Solve for x
    x = 111,624,880,816.32/447,015.20
  6. Step 6: Final answer
    x = 249,711.60

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Double scale
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Similar ratio
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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.