Home / 419,531.24-629,285.34-103,981.16

Finding the Fourth Proportional to 419,531.24, 629,285.34 and 103,981.16

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Solution

The fourth proportional to 419,531.24, 629,285.34 and 103,981.16 is: 155,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,531.24 : 629,285.34 = 103,981.16 : x
  2. Step 2: Convert to fraction form
    419,531.24/629,285.34 = 103,981.16/x
  3. Step 3: Cross multiply
    419,531.24x = 629,285.34 × 103,981.16
  4. Step 4: Simplify right side
    419,531.24x = 65,433,819,624.19
  5. Step 5: Solve for x
    x = 65,433,819,624.19/419,531.24
  6. Step 6: Final answer
    x = 155,968.88

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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.