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Finding the Fourth Proportional to 320,686.15, 481,195.20 and 232,666.15

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Solution

The fourth proportional to 320,686.15, 481,195.20 and 232,666.15 is: 349,119.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,686.15 : 481,195.20 = 232,666.15 : x
  2. Step 2: Convert to fraction form
    320,686.15/481,195.20 = 232,666.15/x
  3. Step 3: Cross multiply
    320,686.15x = 481,195.20 × 232,666.15
  4. Step 4: Simplify right side
    320,686.15x = 111,957,832,176.50
  5. Step 5: Solve for x
    x = 111,957,832,176.50/320,686.15
  6. Step 6: Final answer
    x = 349,119.64

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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.