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Finding the Fourth Proportional to 336,434.10, 504,653.04 and 99,778.56

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Solution

The fourth proportional to 336,434.10, 504,653.04 and 99,778.56 is: 149,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,434.10 : 504,653.04 = 99,778.56 : x
  2. Step 2: Convert to fraction form
    336,434.10/504,653.04 = 99,778.56/x
  3. Step 3: Cross multiply
    336,434.10x = 504,653.04 × 99,778.56
  4. Step 4: Simplify right side
    336,434.10x = 50,353,553,630.82
  5. Step 5: Solve for x
    x = 50,353,553,630.82/336,434.10
  6. Step 6: Final answer
    x = 149,668.40

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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.