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Finding the Fourth Proportional to 372,983.40, 558,816.30 and 360,649.80

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Solution

The fourth proportional to 372,983.40, 558,816.30 and 360,649.80 is: 540,337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,983.40 : 558,816.30 = 360,649.80 : x
  2. Step 2: Convert to fraction form
    372,983.40/558,816.30 = 360,649.80/x
  3. Step 3: Cross multiply
    372,983.40x = 558,816.30 × 360,649.80
  4. Step 4: Simplify right side
    372,983.40x = 201,536,986,831.74
  5. Step 5: Solve for x
    x = 201,536,986,831.74/372,983.40
  6. Step 6: Final answer
    x = 540,337.68

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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.