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Finding the Fourth Proportional to 568,385.76, 852,509.54 and 355,172.70

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Solution

The fourth proportional to 568,385.76, 852,509.54 and 355,172.70 is: 532,715.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,385.76 : 852,509.54 = 355,172.70 : x
  2. Step 2: Convert to fraction form
    568,385.76/852,509.54 = 355,172.70/x
  3. Step 3: Cross multiply
    568,385.76x = 852,509.54 × 355,172.70
  4. Step 4: Simplify right side
    568,385.76x = 302,788,116,340.90
  5. Step 5: Solve for x
    x = 302,788,116,340.90/568,385.76
  6. Step 6: Final answer
    x = 532,715.87

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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.