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Finding the Fourth Proportional to 504,580.84, 696,306.66 and 278,226.28

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Solution

The fourth proportional to 504,580.84, 696,306.66 and 278,226.28 is: 383,944.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,580.84 : 696,306.66 = 278,226.28 : x
  2. Step 2: Convert to fraction form
    504,580.84/696,306.66 = 278,226.28/x
  3. Step 3: Cross multiply
    504,580.84x = 696,306.66 × 278,226.28
  4. Step 4: Simplify right side
    504,580.84x = 193,730,811,751.03
  5. Step 5: Solve for x
    x = 193,730,811,751.03/504,580.84
  6. Step 6: Final answer
    x = 383,944.05

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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.