Home / 685,199.25-945,551.27-379,288.98

Finding the Fourth Proportional to 685,199.25, 945,551.27 and 379,288.98

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Solution

The fourth proportional to 685,199.25, 945,551.27 and 379,288.98 is: 523,405.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,199.25 : 945,551.27 = 379,288.98 : x
  2. Step 2: Convert to fraction form
    685,199.25/945,551.27 = 379,288.98/x
  3. Step 3: Cross multiply
    685,199.25x = 945,551.27 × 379,288.98
  4. Step 4: Simplify right side
    685,199.25x = 358,637,177,684.23
  5. Step 5: Solve for x
    x = 358,637,177,684.23/685,199.25
  6. Step 6: Final answer
    x = 523,405.68

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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.