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Finding the Fourth Proportional to 382,716.40, 573,815.40 and 202,831.60

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Solution

The fourth proportional to 382,716.40, 573,815.40 and 202,831.60 is: 304,110.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,716.40 : 573,815.40 = 202,831.60 : x
  2. Step 2: Convert to fraction form
    382,716.40/573,815.40 = 202,831.60/x
  3. Step 3: Cross multiply
    382,716.40x = 573,815.40 × 202,831.60
  4. Step 4: Simplify right side
    382,716.40x = 116,387,895,686.64
  5. Step 5: Solve for x
    x = 116,387,895,686.64/382,716.40
  6. Step 6: Final answer
    x = 304,110.03

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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.