Home / 405,189.40-608,331.30-236,882.20

Finding the Fourth Proportional to 405,189.40, 608,331.30 and 236,882.20

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Solution

The fourth proportional to 405,189.40, 608,331.30 and 236,882.20 is: 355,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,189.40 : 608,331.30 = 236,882.20 : x
  2. Step 2: Convert to fraction form
    405,189.40/608,331.30 = 236,882.20/x
  3. Step 3: Cross multiply
    405,189.40x = 608,331.30 × 236,882.20
  4. Step 4: Simplify right side
    405,189.40x = 144,102,856,672.86
  5. Step 5: Solve for x
    x = 144,102,856,672.86/405,189.40
  6. Step 6: Final answer
    x = 355,643.20

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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.