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Finding the Fourth Proportional to 504,455.63, 696,153.53 and 278,109.23

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Solution

The fourth proportional to 504,455.63, 696,153.53 and 278,109.23 is: 383,793.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,455.63 : 696,153.53 = 278,109.23 : x
  2. Step 2: Convert to fraction form
    504,455.63/696,153.53 = 278,109.23/x
  3. Step 3: Cross multiply
    504,455.63x = 696,153.53 × 278,109.23
  4. Step 4: Simplify right side
    504,455.63x = 193,606,720,799.54
  5. Step 5: Solve for x
    x = 193,606,720,799.54/504,455.63
  6. Step 6: Final answer
    x = 383,793.36

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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.