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Finding the Fourth Proportional to 585,120.88, 877,637.56 and 211,143.88

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Solution

The fourth proportional to 585,120.88, 877,637.56 and 211,143.88 is: 316,700.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,120.88 : 877,637.56 = 211,143.88 : x
  2. Step 2: Convert to fraction form
    585,120.88/877,637.56 = 211,143.88/x
  3. Step 3: Cross multiply
    585,120.88x = 877,637.56 × 211,143.88
  4. Step 4: Simplify right side
    585,120.88x = 185,307,799,652.13
  5. Step 5: Solve for x
    x = 185,307,799,652.13/585,120.88
  6. Step 6: Final answer
    x = 316,700.03

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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.