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Finding the Fourth Proportional to 548,978.40, 823,390.80 and 175,039.20

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Solution

The fourth proportional to 548,978.40, 823,390.80 and 175,039.20 is: 262,534.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,978.40 : 823,390.80 = 175,039.20 : x
  2. Step 2: Convert to fraction form
    548,978.40/823,390.80 = 175,039.20/x
  3. Step 3: Cross multiply
    548,978.40x = 823,390.80 × 175,039.20
  4. Step 4: Simplify right side
    548,978.40x = 144,125,666,919.36
  5. Step 5: Solve for x
    x = 144,125,666,919.36/548,978.40
  6. Step 6: Final answer
    x = 262,534.31

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.