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Finding the Fourth Proportional to 479,597.76, 718,606.08 and 311,109.12

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Solution

The fourth proportional to 479,597.76, 718,606.08 and 311,109.12 is: 466,150.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,597.76 : 718,606.08 = 311,109.12 : x
  2. Step 2: Convert to fraction form
    479,597.76/718,606.08 = 311,109.12/x
  3. Step 3: Cross multiply
    479,597.76x = 718,606.08 × 311,109.12
  4. Step 4: Simplify right side
    479,597.76x = 223,564,905,175.45
  5. Step 5: Solve for x
    x = 223,564,905,175.45/479,597.76
  6. Step 6: Final answer
    x = 466,150.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.