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Finding the Fourth Proportional to 316,227.00, 436,393.83 and 172,987.04

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Solution

The fourth proportional to 316,227.00, 436,393.83 and 172,987.04 is: 238,722.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,227.00 : 436,393.83 = 172,987.04 : x
  2. Step 2: Convert to fraction form
    316,227.00/436,393.83 = 172,987.04/x
  3. Step 3: Cross multiply
    316,227.00x = 436,393.83 × 172,987.04
  4. Step 4: Simplify right side
    316,227.00x = 75,490,473,879.06
  5. Step 5: Solve for x
    x = 75,490,473,879.06/316,227.00
  6. Step 6: Final answer
    x = 238,722.42

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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.