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Finding the Fourth Proportional to 347,785.50, 482,399.44 and 338,567.30

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Solution

The fourth proportional to 347,785.50, 482,399.44 and 338,567.30 is: 469,613.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,785.50 : 482,399.44 = 338,567.30 : x
  2. Step 2: Convert to fraction form
    347,785.50/482,399.44 = 338,567.30/x
  3. Step 3: Cross multiply
    347,785.50x = 482,399.44 × 338,567.30
  4. Step 4: Simplify right side
    347,785.50x = 163,324,676,377.34
  5. Step 5: Solve for x
    x = 163,324,676,377.34/347,785.50
  6. Step 6: Final answer
    x = 469,613.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.