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Finding the Fourth Proportional to 574,386.12, 860,991.12 and 259,064.46

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Solution

The fourth proportional to 574,386.12, 860,991.12 and 259,064.46 is: 388,331.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,386.12 : 860,991.12 = 259,064.46 : x
  2. Step 2: Convert to fraction form
    574,386.12/860,991.12 = 259,064.46/x
  3. Step 3: Cross multiply
    574,386.12x = 860,991.12 × 259,064.46
  4. Step 4: Simplify right side
    574,386.12x = 223,052,199,567.60
  5. Step 5: Solve for x
    x = 223,052,199,567.60/574,386.12
  6. Step 6: Final answer
    x = 388,331.46

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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.