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Finding the Fourth Proportional to 548,418.45, 822,295.53 and 358,649.76

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Solution

The fourth proportional to 548,418.45, 822,295.53 and 358,649.76 is: 537,757.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,418.45 : 822,295.53 = 358,649.76 : x
  2. Step 2: Convert to fraction form
    548,418.45/822,295.53 = 358,649.76/x
  3. Step 3: Cross multiply
    548,418.45x = 822,295.53 × 358,649.76
  4. Step 4: Simplify right side
    548,418.45x = 294,916,094,483.57
  5. Step 5: Solve for x
    x = 294,916,094,483.57/548,418.45
  6. Step 6: Final answer
    x = 537,757.43

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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.