Home / 400,399.11-552,496.14-239,219.91

Finding the Fourth Proportional to 400,399.11, 552,496.14 and 239,219.91

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Solution

The fourth proportional to 400,399.11, 552,496.14 and 239,219.91 is: 330,090.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,399.11 : 552,496.14 = 239,219.91 : x
  2. Step 2: Convert to fraction form
    400,399.11/552,496.14 = 239,219.91/x
  3. Step 3: Cross multiply
    400,399.11x = 552,496.14 × 239,219.91
  4. Step 4: Simplify right side
    400,399.11x = 132,168,076,886.15
  5. Step 5: Solve for x
    x = 132,168,076,886.15/400,399.11
  6. Step 6: Final answer
    x = 330,090.84

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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.