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Finding the Fourth Proportional to 504,416.25, 696,109.01 and 278,076.33

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Solution

The fourth proportional to 504,416.25, 696,109.01 and 278,076.33 is: 383,753.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,416.25 : 696,109.01 = 278,076.33 : x
  2. Step 2: Convert to fraction form
    504,416.25/696,109.01 = 278,076.33/x
  3. Step 3: Cross multiply
    504,416.25x = 696,109.01 × 278,076.33
  4. Step 4: Simplify right side
    504,416.25x = 193,571,437,390.35
  5. Step 5: Solve for x
    x = 193,571,437,390.35/504,416.25
  6. Step 6: Final answer
    x = 383,753.37

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1.5x scale

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.