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Finding the Fourth Proportional to 319,755.30, 441,250.65 and 176,514.90

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Solution

The fourth proportional to 319,755.30, 441,250.65 and 176,514.90 is: 243,584.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,755.30 : 441,250.65 = 176,514.90 : x
  2. Step 2: Convert to fraction form
    319,755.30/441,250.65 = 176,514.90/x
  3. Step 3: Cross multiply
    319,755.30x = 441,250.65 × 176,514.90
  4. Step 4: Simplify right side
    319,755.30x = 77,887,314,359.69
  5. Step 5: Solve for x
    x = 77,887,314,359.69/319,755.30
  6. Step 6: Final answer
    x = 243,584.12

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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.