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Finding the Fourth Proportional to 291,082.80, 436,624.20 and 113,595.60

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Solution

The fourth proportional to 291,082.80, 436,624.20 and 113,595.60 is: 170,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,082.80 : 436,624.20 = 113,595.60 : x
  2. Step 2: Convert to fraction form
    291,082.80/436,624.20 = 113,595.60/x
  3. Step 3: Cross multiply
    291,082.80x = 436,624.20 × 113,595.60
  4. Step 4: Simplify right side
    291,082.80x = 49,598,587,973.52
  5. Step 5: Solve for x
    x = 49,598,587,973.52/291,082.80
  6. Step 6: Final answer
    x = 170,393.40

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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.