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Finding the Fourth Proportional to 573,798.40, 860,083.20 and 258,201.60

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Solution

The fourth proportional to 573,798.40, 860,083.20 and 258,201.60 is: 387,025.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,798.40 : 860,083.20 = 258,201.60 : x
  2. Step 2: Convert to fraction form
    573,798.40/860,083.20 = 258,201.60/x
  3. Step 3: Cross multiply
    573,798.40x = 860,083.20 × 258,201.60
  4. Step 4: Simplify right side
    573,798.40x = 222,074,858,373.12
  5. Step 5: Solve for x
    x = 222,074,858,373.12/573,798.40
  6. Step 6: Final answer
    x = 387,025.93

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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.