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Finding the Fourth Proportional to 540,818.70, 746,342.90 and 295,826.48

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Solution

The fourth proportional to 540,818.70, 746,342.90 and 295,826.48 is: 408,247.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,818.70 : 746,342.90 = 295,826.48 : x
  2. Step 2: Convert to fraction form
    540,818.70/746,342.90 = 295,826.48/x
  3. Step 3: Cross multiply
    540,818.70x = 746,342.90 × 295,826.48
  4. Step 4: Simplify right side
    540,818.70x = 220,787,992,979.99
  5. Step 5: Solve for x
    x = 220,787,992,979.99/540,818.70
  6. Step 6: Final answer
    x = 408,247.70

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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.