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Finding the Fourth Proportional to 328,787.72, 453,727.86 and 177,885.80

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Solution

The fourth proportional to 328,787.72, 453,727.86 and 177,885.80 is: 245,482.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,787.72 : 453,727.86 = 177,885.80 : x
  2. Step 2: Convert to fraction form
    328,787.72/453,727.86 = 177,885.80/x
  3. Step 3: Cross multiply
    328,787.72x = 453,727.86 × 177,885.80
  4. Step 4: Simplify right side
    328,787.72x = 80,711,743,358.39
  5. Step 5: Solve for x
    x = 80,711,743,358.39/328,787.72
  6. Step 6: Final answer
    x = 245,482.84

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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.