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Finding the Fourth Proportional to 365,259.84, 548,144.10 and 128,621.58

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Solution

The fourth proportional to 365,259.84, 548,144.10 and 128,621.58 is: 193,021.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,259.84 : 548,144.10 = 128,621.58 : x
  2. Step 2: Convert to fraction form
    365,259.84/548,144.10 = 128,621.58/x
  3. Step 3: Cross multiply
    365,259.84x = 548,144.10 × 128,621.58
  4. Step 4: Simplify right side
    365,259.84x = 70,503,160,209.68
  5. Step 5: Solve for x
    x = 70,503,160,209.68/365,259.84
  6. Step 6: Final answer
    x = 193,021.93

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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.