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Finding the Fourth Proportional to 383,938.68, 575,908.08 and 196,830.84

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Solution

The fourth proportional to 383,938.68, 575,908.08 and 196,830.84 is: 295,246.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,938.68 : 575,908.08 = 196,830.84 : x
  2. Step 2: Convert to fraction form
    383,938.68/575,908.08 = 196,830.84/x
  3. Step 3: Cross multiply
    383,938.68x = 575,908.08 × 196,830.84
  4. Step 4: Simplify right side
    383,938.68x = 113,356,471,149.19
  5. Step 5: Solve for x
    x = 113,356,471,149.19/383,938.68
  6. Step 6: Final answer
    x = 295,246.29

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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.