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Finding the Fourth Proportional to 504,702.65, 696,470.41 and 278,348.15

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Solution

The fourth proportional to 504,702.65, 696,470.41 and 278,348.15 is: 384,109.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,702.65 : 696,470.41 = 278,348.15 : x
  2. Step 2: Convert to fraction form
    504,702.65/696,470.41 = 278,348.15/x
  3. Step 3: Cross multiply
    504,702.65x = 696,470.41 × 278,348.15
  4. Step 4: Simplify right side
    504,702.65x = 193,861,250,153.24
  5. Step 5: Solve for x
    x = 193,861,250,153.24/504,702.65
  6. Step 6: Final answer
    x = 384,109.83

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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.