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Finding the Fourth Proportional to 328,265.40, 453,059.10 and 247,783.80

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Solution

The fourth proportional to 328,265.40, 453,059.10 and 247,783.80 is: 341,981.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,265.40 : 453,059.10 = 247,783.80 : x
  2. Step 2: Convert to fraction form
    328,265.40/453,059.10 = 247,783.80/x
  3. Step 3: Cross multiply
    328,265.40x = 453,059.10 × 247,783.80
  4. Step 4: Simplify right side
    328,265.40x = 112,260,705,422.58
  5. Step 5: Solve for x
    x = 112,260,705,422.58/328,265.40
  6. Step 6: Final answer
    x = 341,981.54

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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.