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Finding the Fourth Proportional to 320,070.60, 441,609.30 and 185,934.60

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Solution

The fourth proportional to 320,070.60, 441,609.30 and 185,934.60 is: 256,538.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,070.60 : 441,609.30 = 185,934.60 : x
  2. Step 2: Convert to fraction form
    320,070.60/441,609.30 = 185,934.60/x
  3. Step 3: Cross multiply
    320,070.60x = 441,609.30 × 185,934.60
  4. Step 4: Simplify right side
    320,070.60x = 82,110,448,551.78
  5. Step 5: Solve for x
    x = 82,110,448,551.78/320,070.60
  6. Step 6: Final answer
    x = 256,538.55

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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.