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Finding the Fourth Proportional to 365,529.20, 548,293.80 and 208,065.20

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Solution

The fourth proportional to 365,529.20, 548,293.80 and 208,065.20 is: 312,097.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,529.20 : 548,293.80 = 208,065.20 : x
  2. Step 2: Convert to fraction form
    365,529.20/548,293.80 = 208,065.20/x
  3. Step 3: Cross multiply
    365,529.20x = 548,293.80 × 208,065.20
  4. Step 4: Simplify right side
    365,529.20x = 114,080,859,155.76
  5. Step 5: Solve for x
    x = 114,080,859,155.76/365,529.20
  6. Step 6: Final answer
    x = 312,097.80

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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.