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Finding the Fourth Proportional to 363,973.20, 545,959.80 and 313,234.80

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Solution

The fourth proportional to 363,973.20, 545,959.80 and 313,234.80 is: 469,852.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,973.20 : 545,959.80 = 313,234.80 : x
  2. Step 2: Convert to fraction form
    363,973.20/545,959.80 = 313,234.80/x
  3. Step 3: Cross multiply
    363,973.20x = 545,959.80 × 313,234.80
  4. Step 4: Simplify right side
    363,973.20x = 171,013,608,761.04
  5. Step 5: Solve for x
    x = 171,013,608,761.04/363,973.20
  6. Step 6: Final answer
    x = 469,852.20

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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.