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Finding the Fourth Proportional to 544,454.39, 816,847.74 and 278,401.79

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Solution

The fourth proportional to 544,454.39, 816,847.74 and 278,401.79 is: 417,687.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,454.39 : 816,847.74 = 278,401.79 : x
  2. Step 2: Convert to fraction form
    544,454.39/816,847.74 = 278,401.79/x
  3. Step 3: Cross multiply
    544,454.39x = 816,847.74 × 278,401.79
  4. Step 4: Simplify right side
    544,454.39x = 227,411,875,015.57
  5. Step 5: Solve for x
    x = 227,411,875,015.57/544,454.39
  6. Step 6: Final answer
    x = 417,687.65

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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.