Home / 319,880.12-441,423.42-183,909.56

Finding the Fourth Proportional to 319,880.12, 441,423.42 and 183,909.56

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Solution

The fourth proportional to 319,880.12, 441,423.42 and 183,909.56 is: 253,788.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,880.12 : 441,423.42 = 183,909.56 : x
  2. Step 2: Convert to fraction form
    319,880.12/441,423.42 = 183,909.56/x
  3. Step 3: Cross multiply
    319,880.12x = 441,423.42 × 183,909.56
  4. Step 4: Simplify right side
    319,880.12x = 81,181,986,945.90
  5. Step 5: Solve for x
    x = 81,181,986,945.90/319,880.12
  6. Step 6: Final answer
    x = 253,788.78

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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.