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Finding the Fourth Proportional to 539,074.40, 808,683.60 and 183,999.20

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Solution

The fourth proportional to 539,074.40, 808,683.60 and 183,999.20 is: 276,023.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,074.40 : 808,683.60 = 183,999.20 : x
  2. Step 2: Convert to fraction form
    539,074.40/808,683.60 = 183,999.20/x
  3. Step 3: Cross multiply
    539,074.40x = 808,683.60 × 183,999.20
  4. Step 4: Simplify right side
    539,074.40x = 148,797,135,453.12
  5. Step 5: Solve for x
    x = 148,797,135,453.12/539,074.40
  6. Step 6: Final answer
    x = 276,023.38

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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.