Home / 645,191.21-967,724.25-195,915.98

Finding the Fourth Proportional to 645,191.21, 967,724.25 and 195,915.98

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Solution

The fourth proportional to 645,191.21, 967,724.25 and 195,915.98 is: 293,854.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,191.21 : 967,724.25 = 195,915.98 : x
  2. Step 2: Convert to fraction form
    645,191.21/967,724.25 = 195,915.98/x
  3. Step 3: Cross multiply
    645,191.21x = 967,724.25 × 195,915.98
  4. Step 4: Simplify right side
    645,191.21x = 189,592,639,969.89
  5. Step 5: Solve for x
    x = 189,592,639,969.89/645,191.21
  6. Step 6: Final answer
    x = 293,854.97

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Double scale
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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.