Home / 319,623.19-479,435.69-82,967.92

Finding the Fourth Proportional to 319,623.19, 479,435.69 and 82,967.92

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Solution

The fourth proportional to 319,623.19, 479,435.69 and 82,967.92 is: 124,452.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,623.19 : 479,435.69 = 82,967.92 : x
  2. Step 2: Convert to fraction form
    319,623.19/479,435.69 = 82,967.92/x
  3. Step 3: Cross multiply
    319,623.19x = 479,435.69 × 82,967.92
  4. Step 4: Simplify right side
    319,623.19x = 39,777,780,981.90
  5. Step 5: Solve for x
    x = 39,777,780,981.90/319,623.19
  6. Step 6: Final answer
    x = 124,452.11

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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.