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Finding the Fourth Proportional to 587,806.58, 881,959.53 and 321,255.71

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Solution

The fourth proportional to 587,806.58, 881,959.53 and 321,255.71 is: 482,020.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,806.58 : 881,959.53 = 321,255.71 : x
  2. Step 2: Convert to fraction form
    587,806.58/881,959.53 = 321,255.71/x
  3. Step 3: Cross multiply
    587,806.58x = 881,959.53 × 321,255.71
  4. Step 4: Simplify right side
    587,806.58x = 283,334,535,001.42
  5. Step 5: Solve for x
    x = 283,334,535,001.42/587,806.58
  6. Step 6: Final answer
    x = 482,020.01

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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.