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Finding the Fourth Proportional to 545,937.20, 819,780.60 and 412,967.60

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Solution

The fourth proportional to 545,937.20, 819,780.60 and 412,967.60 is: 620,113.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,937.20 : 819,780.60 = 412,967.60 : x
  2. Step 2: Convert to fraction form
    545,937.20/819,780.60 = 412,967.60/x
  3. Step 3: Cross multiply
    545,937.20x = 819,780.60 × 412,967.60
  4. Step 4: Simplify right side
    545,937.20x = 338,542,826,908.56
  5. Step 5: Solve for x
    x = 338,542,826,908.56/545,937.20
  6. Step 6: Final answer
    x = 620,113.13

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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.