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Finding the Fourth Proportional to 347,489.51, 479,531.85 and 194,528.96

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Solution

The fourth proportional to 347,489.51, 479,531.85 and 194,528.96 is: 268,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,489.51 : 479,531.85 = 194,528.96 : x
  2. Step 2: Convert to fraction form
    347,489.51/479,531.85 = 194,528.96/x
  3. Step 3: Cross multiply
    347,489.51x = 479,531.85 × 194,528.96
  4. Step 4: Simplify right side
    347,489.51x = 93,282,829,669.72
  5. Step 5: Solve for x
    x = 93,282,829,669.72/347,489.51
  6. Step 6: Final answer
    x = 268,447.91

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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.