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Finding the Fourth Proportional to 319,909.14, 441,473.13 and 176,668.56

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Solution

The fourth proportional to 319,909.14, 441,473.13 and 176,668.56 is: 243,801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,909.14 : 441,473.13 = 176,668.56 : x
  2. Step 2: Convert to fraction form
    319,909.14/441,473.13 = 176,668.56/x
  3. Step 3: Cross multiply
    319,909.14x = 441,473.13 × 176,668.56
  4. Step 4: Simplify right side
    319,909.14x = 77,994,422,155.79
  5. Step 5: Solve for x
    x = 77,994,422,155.79/319,909.14
  6. Step 6: Final answer
    x = 243,801.79

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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.