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Finding the Fourth Proportional to 532,128.40, 796,880.40 and 353,669.20

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Solution

The fourth proportional to 532,128.40, 796,880.40 and 353,669.20 is: 529,631.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,128.40 : 796,880.40 = 353,669.20 : x
  2. Step 2: Convert to fraction form
    532,128.40/796,880.40 = 353,669.20/x
  3. Step 3: Cross multiply
    532,128.40x = 796,880.40 × 353,669.20
  4. Step 4: Simplify right side
    532,128.40x = 281,832,053,563.68
  5. Step 5: Solve for x
    x = 281,832,053,563.68/532,128.40
  6. Step 6: Final answer
    x = 529,631.67

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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.