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Finding the Fourth Proportional to 504,355.38, 696,015.09 and 278,008.98

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Solution

The fourth proportional to 504,355.38, 696,015.09 and 278,008.98 is: 383,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,355.38 : 696,015.09 = 278,008.98 : x
  2. Step 2: Convert to fraction form
    504,355.38/696,015.09 = 278,008.98/x
  3. Step 3: Cross multiply
    504,355.38x = 696,015.09 × 278,008.98
  4. Step 4: Simplify right side
    504,355.38x = 193,498,445,235.51
  5. Step 5: Solve for x
    x = 193,498,445,235.51/504,355.38
  6. Step 6: Final answer
    x = 383,654.96

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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.