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Finding the Fourth Proportional to 317,221.40, 437,763.48 and 181,296.92

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Solution

The fourth proportional to 317,221.40, 437,763.48 and 181,296.92 is: 250,188.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,221.40 : 437,763.48 = 181,296.92 : x
  2. Step 2: Convert to fraction form
    317,221.40/437,763.48 = 181,296.92/x
  3. Step 3: Cross multiply
    317,221.40x = 437,763.48 × 181,296.92
  4. Step 4: Simplify right side
    317,221.40x = 79,365,170,612.48
  5. Step 5: Solve for x
    x = 79,365,170,612.48/317,221.40
  6. Step 6: Final answer
    x = 250,188.58

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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.