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Finding the Fourth Proportional to 580,211.91, 866,347.04 and 519,850.71

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Solution

The fourth proportional to 580,211.91, 866,347.04 and 519,850.71 is: 776,218.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,211.91 : 866,347.04 = 519,850.71 : x
  2. Step 2: Convert to fraction form
    580,211.91/866,347.04 = 519,850.71/x
  3. Step 3: Cross multiply
    580,211.91x = 866,347.04 × 519,850.71
  4. Step 4: Simplify right side
    580,211.91x = 450,371,125,150.03
  5. Step 5: Solve for x
    x = 450,371,125,150.03/580,211.91
  6. Step 6: Final answer
    x = 776,218.34

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.