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Finding the Fourth Proportional to 519,889.60, 778,605.60 and 352,772.80

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Solution

The fourth proportional to 519,889.60, 778,605.60 and 352,772.80 is: 528,325.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,889.60 : 778,605.60 = 352,772.80 : x
  2. Step 2: Convert to fraction form
    519,889.60/778,605.60 = 352,772.80/x
  3. Step 3: Cross multiply
    519,889.60x = 778,605.60 × 352,772.80
  4. Step 4: Simplify right side
    519,889.60x = 274,670,877,607.68
  5. Step 5: Solve for x
    x = 274,670,877,607.68/519,889.60
  6. Step 6: Final answer
    x = 528,325.39

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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.