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Finding the Fourth Proportional to 504,651.12, 696,472.56 and 308,532.67

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Solution

The fourth proportional to 504,651.12, 696,472.56 and 308,532.67 is: 425,808.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,651.12 : 696,472.56 = 308,532.67 : x
  2. Step 2: Convert to fraction form
    504,651.12/696,472.56 = 308,532.67/x
  3. Step 3: Cross multiply
    504,651.12x = 696,472.56 × 308,532.67
  4. Step 4: Simplify right side
    504,651.12x = 214,884,538,518.54
  5. Step 5: Solve for x
    x = 214,884,538,518.54/504,651.12
  6. Step 6: Final answer
    x = 425,808.11

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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.