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Finding the Fourth Proportional to 328,311.68, 453,042.88 and 185,106.92

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Solution

The fourth proportional to 328,311.68, 453,042.88 and 185,106.92 is: 255,432.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,311.68 : 453,042.88 = 185,106.92 : x
  2. Step 2: Convert to fraction form
    328,311.68/453,042.88 = 185,106.92/x
  3. Step 3: Cross multiply
    328,311.68x = 453,042.88 × 185,106.92
  4. Step 4: Simplify right side
    328,311.68x = 83,861,372,144.73
  5. Step 5: Solve for x
    x = 83,861,372,144.73/328,311.68
  6. Step 6: Final answer
    x = 255,432.19

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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.