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Finding the Fourth Proportional to 366,906.48, 550,359.72 and 278,332.98

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Solution

The fourth proportional to 366,906.48, 550,359.72 and 278,332.98 is: 417,499.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,906.48 : 550,359.72 = 278,332.98 : x
  2. Step 2: Convert to fraction form
    366,906.48/550,359.72 = 278,332.98/x
  3. Step 3: Cross multiply
    366,906.48x = 550,359.72 × 278,332.98
  4. Step 4: Simplify right side
    366,906.48x = 153,183,260,939.57
  5. Step 5: Solve for x
    x = 153,183,260,939.57/366,906.48
  6. Step 6: Final answer
    x = 417,499.47

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1.5x scale

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.