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Finding the Fourth Proportional to 519,115.89, 716,386.71 and 301,375.43

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Solution

The fourth proportional to 519,115.89, 716,386.71 and 301,375.43 is: 415,902.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,115.89 : 716,386.71 = 301,375.43 : x
  2. Step 2: Convert to fraction form
    519,115.89/716,386.71 = 301,375.43/x
  3. Step 3: Cross multiply
    519,115.89x = 716,386.71 × 301,375.43
  4. Step 4: Simplify right side
    519,115.89x = 215,901,354,494.03
  5. Step 5: Solve for x
    x = 215,901,354,494.03/519,115.89
  6. Step 6: Final answer
    x = 415,902.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.