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Finding the Fourth Proportional to 321,326.04, 443,379.78 and 185,365.11

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Solution

The fourth proportional to 321,326.04, 443,379.78 and 185,365.11 is: 255,774.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,326.04 : 443,379.78 = 185,365.11 : x
  2. Step 2: Convert to fraction form
    321,326.04/443,379.78 = 185,365.11/x
  3. Step 3: Cross multiply
    321,326.04x = 443,379.78 × 185,365.11
  4. Step 4: Simplify right side
    321,326.04x = 82,187,141,691.48
  5. Step 5: Solve for x
    x = 82,187,141,691.48/321,326.04
  6. Step 6: Final answer
    x = 255,774.92

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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.