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Finding the Fourth Proportional to 372,982.40, 558,814.80 and 360,648.80

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Solution

The fourth proportional to 372,982.40, 558,814.80 and 360,648.80 is: 540,336.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,982.40 : 558,814.80 = 360,648.80 : x
  2. Step 2: Convert to fraction form
    372,982.40/558,814.80 = 360,648.80/x
  3. Step 3: Cross multiply
    372,982.40x = 558,814.80 × 360,648.80
  4. Step 4: Simplify right side
    372,982.40x = 201,535,887,042.24
  5. Step 5: Solve for x
    x = 201,535,887,042.24/372,982.40
  6. Step 6: Final answer
    x = 540,336.18

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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.