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Finding the Fourth Proportional to 468,028.68, 645,875.55 and 264,081.12

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Solution

The fourth proportional to 468,028.68, 645,875.55 and 264,081.12 is: 364,429.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,028.68 : 645,875.55 = 264,081.12 : x
  2. Step 2: Convert to fraction form
    468,028.68/645,875.55 = 264,081.12/x
  3. Step 3: Cross multiply
    468,028.68x = 645,875.55 × 264,081.12
  4. Step 4: Simplify right side
    468,028.68x = 170,563,538,624.62
  5. Step 5: Solve for x
    x = 170,563,538,624.62/468,028.68
  6. Step 6: Final answer
    x = 364,429.67

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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.