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Finding the Fourth Proportional to 519,863.44, 778,020.96 and 435,718.60

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Solution

The fourth proportional to 519,863.44, 778,020.96 and 435,718.60 is: 652,090.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,863.44 : 778,020.96 = 435,718.60 : x
  2. Step 2: Convert to fraction form
    519,863.44/778,020.96 = 435,718.60/x
  3. Step 3: Cross multiply
    519,863.44x = 778,020.96 × 435,718.60
  4. Step 4: Simplify right side
    519,863.44x = 338,998,203,461.86
  5. Step 5: Solve for x
    x = 338,998,203,461.86/519,863.44
  6. Step 6: Final answer
    x = 652,090.87

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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.