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Finding the Fourth Proportional to 519,876.44, 778,040.44 and 435,731.60

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Solution

The fourth proportional to 519,876.44, 778,040.44 and 435,731.60 is: 652,110.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,876.44 : 778,040.44 = 435,731.60 : x
  2. Step 2: Convert to fraction form
    519,876.44/778,040.44 = 435,731.60/x
  3. Step 3: Cross multiply
    519,876.44x = 778,040.44 × 435,731.60
  4. Step 4: Simplify right side
    519,876.44x = 339,016,805,785.90
  5. Step 5: Solve for x
    x = 339,016,805,785.90/519,876.44
  6. Step 6: Final answer
    x = 652,110.35

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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.