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Finding the Fourth Proportional to 504,427.50, 696,124.53 and 278,087.58

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Solution

The fourth proportional to 504,427.50, 696,124.53 and 278,087.58 is: 383,768.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,427.50 : 696,124.53 = 278,087.58 : x
  2. Step 2: Convert to fraction form
    504,427.50/696,124.53 = 278,087.58/x
  3. Step 3: Cross multiply
    504,427.50x = 696,124.53 × 278,087.58
  4. Step 4: Simplify right side
    504,427.50x = 193,583,585,926.34
  5. Step 5: Solve for x
    x = 193,583,585,926.34/504,427.50
  6. Step 6: Final answer
    x = 383,768.90

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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.