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Finding the Fourth Proportional to 319,759.80, 441,256.86 and 176,519.40

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Solution

The fourth proportional to 319,759.80, 441,256.86 and 176,519.40 is: 243,590.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,759.80 : 441,256.86 = 176,519.40 : x
  2. Step 2: Convert to fraction form
    319,759.80/441,256.86 = 176,519.40/x
  3. Step 3: Cross multiply
    319,759.80x = 441,256.86 × 176,519.40
  4. Step 4: Simplify right side
    319,759.80x = 77,890,396,173.08
  5. Step 5: Solve for x
    x = 77,890,396,173.08/319,759.80
  6. Step 6: Final answer
    x = 243,590.33

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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.