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Finding the Fourth Proportional to 532,874.40, 800,186.40 and 356,164.80

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Solution

The fourth proportional to 532,874.40, 800,186.40 and 356,164.80 is: 534,831.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,874.40 : 800,186.40 = 356,164.80 : x
  2. Step 2: Convert to fraction form
    532,874.40/800,186.40 = 356,164.80/x
  3. Step 3: Cross multiply
    532,874.40x = 800,186.40 × 356,164.80
  4. Step 4: Simplify right side
    532,874.40x = 284,998,229,118.72
  5. Step 5: Solve for x
    x = 284,998,229,118.72/532,874.40
  6. Step 6: Final answer
    x = 534,831.90

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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.