Home / 638,257.46-957,386.20-195,021.62

Finding the Fourth Proportional to 638,257.46, 957,386.20 and 195,021.62

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Solution

The fourth proportional to 638,257.46, 957,386.20 and 195,021.62 is: 292,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,257.46 : 957,386.20 = 195,021.62 : x
  2. Step 2: Convert to fraction form
    638,257.46/957,386.20 = 195,021.62/x
  3. Step 3: Cross multiply
    638,257.46x = 957,386.20 × 195,021.62
  4. Step 4: Simplify right side
    638,257.46x = 186,711,007,689.64
  5. Step 5: Solve for x
    x = 186,711,007,689.64/638,257.46
  6. Step 6: Final answer
    x = 292,532.43

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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.