Home / 545,947.20-819,795.60-412,977.60

Finding the Fourth Proportional to 545,947.20, 819,795.60 and 412,977.60

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Solution

The fourth proportional to 545,947.20, 819,795.60 and 412,977.60 is: 620,128.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,947.20 : 819,795.60 = 412,977.60 : x
  2. Step 2: Convert to fraction form
    545,947.20/819,795.60 = 412,977.60/x
  3. Step 3: Cross multiply
    545,947.20x = 819,795.60 × 412,977.60
  4. Step 4: Simplify right side
    545,947.20x = 338,557,219,378.56
  5. Step 5: Solve for x
    x = 338,557,219,378.56/545,947.20
  6. Step 6: Final answer
    x = 620,128.14

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1.5x scale

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.