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Finding the Fourth Proportional to 504,616.96, 696,339.52 and 278,264.32

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Solution

The fourth proportional to 504,616.96, 696,339.52 and 278,264.32 is: 383,987.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,616.96 : 696,339.52 = 278,264.32 : x
  2. Step 2: Convert to fraction form
    504,616.96/696,339.52 = 278,264.32/x
  3. Step 3: Cross multiply
    504,616.96x = 696,339.52 × 278,264.32
  4. Step 4: Simplify right side
    504,616.96x = 193,766,443,021.93
  5. Step 5: Solve for x
    x = 193,766,443,021.93/504,616.96
  6. Step 6: Final answer
    x = 383,987.18

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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.