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Finding the Fourth Proportional to 303,470.60, 455,205.90 and 277,882.70

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Solution

The fourth proportional to 303,470.60, 455,205.90 and 277,882.70 is: 416,824.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,470.60 : 455,205.90 = 277,882.70 : x
  2. Step 2: Convert to fraction form
    303,470.60/455,205.90 = 277,882.70/x
  3. Step 3: Cross multiply
    303,470.60x = 455,205.90 × 277,882.70
  4. Step 4: Simplify right side
    303,470.60x = 126,493,844,547.93
  5. Step 5: Solve for x
    x = 126,493,844,547.93/303,470.60
  6. Step 6: Final answer
    x = 416,824.05

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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.