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Finding the Fourth Proportional to 475,396.80, 713,095.20 and 208,874.40

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Solution

The fourth proportional to 475,396.80, 713,095.20 and 208,874.40 is: 313,311.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,396.80 : 713,095.20 = 208,874.40 : x
  2. Step 2: Convert to fraction form
    475,396.80/713,095.20 = 208,874.40/x
  3. Step 3: Cross multiply
    475,396.80x = 713,095.20 × 208,874.40
  4. Step 4: Simplify right side
    475,396.80x = 148,947,332,042.88
  5. Step 5: Solve for x
    x = 148,947,332,042.88/475,396.80
  6. Step 6: Final answer
    x = 313,311.60

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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.