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Finding the Fourth Proportional to 434,144.90, 598,790.48 and 380,336.51

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Solution

The fourth proportional to 434,144.90, 598,790.48 and 380,336.51 is: 524,575.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,144.90 : 598,790.48 = 380,336.51 : x
  2. Step 2: Convert to fraction form
    434,144.90/598,790.48 = 380,336.51/x
  3. Step 3: Cross multiply
    434,144.90x = 598,790.48 × 380,336.51
  4. Step 4: Simplify right side
    434,144.90x = 227,741,876,488.79
  5. Step 5: Solve for x
    x = 227,741,876,488.79/434,144.90
  6. Step 6: Final answer
    x = 524,575.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.