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Finding the Fourth Proportional to 410,902.80, 616,354.20 and 210,944.40

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Solution

The fourth proportional to 410,902.80, 616,354.20 and 210,944.40 is: 316,416.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,902.80 : 616,354.20 = 210,944.40 : x
  2. Step 2: Convert to fraction form
    410,902.80/616,354.20 = 210,944.40/x
  3. Step 3: Cross multiply
    410,902.80x = 616,354.20 × 210,944.40
  4. Step 4: Simplify right side
    410,902.80x = 130,016,466,906.48
  5. Step 5: Solve for x
    x = 130,016,466,906.48/410,902.80
  6. Step 6: Final answer
    x = 316,416.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.