Home / 393,584.67-543,144.08-223,818.75

Finding the Fourth Proportional to 393,584.67, 543,144.08 and 223,818.75

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Solution

The fourth proportional to 393,584.67, 543,144.08 and 223,818.75 is: 308,868.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,584.67 : 543,144.08 = 223,818.75 : x
  2. Step 2: Convert to fraction form
    393,584.67/543,144.08 = 223,818.75/x
  3. Step 3: Cross multiply
    393,584.67x = 543,144.08 × 223,818.75
  4. Step 4: Simplify right side
    393,584.67x = 121,565,827,936.41
  5. Step 5: Solve for x
    x = 121,565,827,936.41/393,584.67
  6. Step 6: Final answer
    x = 308,868.30

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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.