Home / 313,610.08-432,739.92-186,239.20

Finding the Fourth Proportional to 313,610.08, 432,739.92 and 186,239.20

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Solution

The fourth proportional to 313,610.08, 432,739.92 and 186,239.20 is: 256,985.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,610.08 : 432,739.92 = 186,239.20 : x
  2. Step 2: Convert to fraction form
    313,610.08/432,739.92 = 186,239.20/x
  3. Step 3: Cross multiply
    313,610.08x = 432,739.92 × 186,239.20
  4. Step 4: Simplify right side
    313,610.08x = 80,593,136,508.86
  5. Step 5: Solve for x
    x = 80,593,136,508.86/313,610.08
  6. Step 6: Final answer
    x = 256,985.16

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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.