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Finding the Fourth Proportional to 316,668.62, 437,002.86 and 173,428.62

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Solution

The fourth proportional to 316,668.62, 437,002.86 and 173,428.62 is: 239,331.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,668.62 : 437,002.86 = 173,428.62 : x
  2. Step 2: Convert to fraction form
    316,668.62/437,002.86 = 173,428.62/x
  3. Step 3: Cross multiply
    316,668.62x = 437,002.86 × 173,428.62
  4. Step 4: Simplify right side
    316,668.62x = 75,788,802,945.85
  5. Step 5: Solve for x
    x = 75,788,802,945.85/316,668.62
  6. Step 6: Final answer
    x = 239,331.59

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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.