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Finding the Fourth Proportional to 392,079.60, 588,556.80 and 366,382.35

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Solution

The fourth proportional to 392,079.60, 588,556.80 and 366,382.35 is: 549,982.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,079.60 : 588,556.80 = 366,382.35 : x
  2. Step 2: Convert to fraction form
    392,079.60/588,556.80 = 366,382.35/x
  3. Step 3: Cross multiply
    392,079.60x = 588,556.80 × 366,382.35
  4. Step 4: Simplify right side
    392,079.60x = 215,636,823,492.48
  5. Step 5: Solve for x
    x = 215,636,823,492.48/392,079.60
  6. Step 6: Final answer
    x = 549,982.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.