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Finding the Fourth Proportional to 532,913.76, 735,099.20 and 351,561.28

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Solution

The fourth proportional to 532,913.76, 735,099.20 and 351,561.28 is: 484,942.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,913.76 : 735,099.20 = 351,561.28 : x
  2. Step 2: Convert to fraction form
    532,913.76/735,099.20 = 351,561.28/x
  3. Step 3: Cross multiply
    532,913.76x = 735,099.20 × 351,561.28
  4. Step 4: Simplify right side
    532,913.76x = 258,432,415,678.98
  5. Step 5: Solve for x
    x = 258,432,415,678.98/532,913.76
  6. Step 6: Final answer
    x = 484,942.28

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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.