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Finding the Fourth Proportional to 504,830.56, 696,612.34 and 278,476.04

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Solution

The fourth proportional to 504,830.56, 696,612.34 and 278,476.04 is: 384,267.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,830.56 : 696,612.34 = 278,476.04 : x
  2. Step 2: Convert to fraction form
    504,830.56/696,612.34 = 278,476.04/x
  3. Step 3: Cross multiply
    504,830.56x = 696,612.34 × 278,476.04
  4. Step 4: Simplify right side
    504,830.56x = 193,989,845,858.33
  5. Step 5: Solve for x
    x = 193,989,845,858.33/504,830.56
  6. Step 6: Final answer
    x = 384,267.24

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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.