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Finding the Fourth Proportional to 347,347.54, 479,348.20 and 194,384.49

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Solution

The fourth proportional to 347,347.54, 479,348.20 and 194,384.49 is: 268,255.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,347.54 : 479,348.20 = 194,384.49 : x
  2. Step 2: Convert to fraction form
    347,347.54/479,348.20 = 194,384.49/x
  3. Step 3: Cross multiply
    347,347.54x = 479,348.20 × 194,384.49
  4. Step 4: Simplify right side
    347,347.54x = 93,177,854,836.67
  5. Step 5: Solve for x
    x = 93,177,854,836.67/347,347.54
  6. Step 6: Final answer
    x = 268,255.40

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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.