Home / 385,219.41-531,599.90-215,453.54

Finding the Fourth Proportional to 385,219.41, 531,599.90 and 215,453.54

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Solution

The fourth proportional to 385,219.41, 531,599.90 and 215,453.54 is: 297,324.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,219.41 : 531,599.90 = 215,453.54 : x
  2. Step 2: Convert to fraction form
    385,219.41/531,599.90 = 215,453.54/x
  3. Step 3: Cross multiply
    385,219.41x = 531,599.90 × 215,453.54
  4. Step 4: Simplify right side
    385,219.41x = 114,535,076,583.38
  5. Step 5: Solve for x
    x = 114,535,076,583.38/385,219.41
  6. Step 6: Final answer
    x = 297,324.26

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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.