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Finding the Fourth Proportional to 442,880.68, 663,999.18 and 176,561.32

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Solution

The fourth proportional to 442,880.68, 663,999.18 and 176,561.32 is: 264,713.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,880.68 : 663,999.18 = 176,561.32 : x
  2. Step 2: Convert to fraction form
    442,880.68/663,999.18 = 176,561.32/x
  3. Step 3: Cross multiply
    442,880.68x = 663,999.18 × 176,561.32
  4. Step 4: Simplify right side
    442,880.68x = 117,236,571,699.72
  5. Step 5: Solve for x
    x = 117,236,571,699.72/442,880.68
  6. Step 6: Final answer
    x = 264,713.67

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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.