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Finding the Fourth Proportional to 585,121.88, 877,639.06 and 211,144.88

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Solution

The fourth proportional to 585,121.88, 877,639.06 and 211,144.88 is: 316,701.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,121.88 : 877,639.06 = 211,144.88 : x
  2. Step 2: Convert to fraction form
    585,121.88/877,639.06 = 211,144.88/x
  3. Step 3: Cross multiply
    585,121.88x = 877,639.06 × 211,144.88
  4. Step 4: Simplify right side
    585,121.88x = 185,308,994,007.01
  5. Step 5: Solve for x
    x = 185,308,994,007.01/585,121.88
  6. Step 6: Final answer
    x = 316,701.53

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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.