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Finding the Fourth Proportional to 544,453.55, 816,846.47 and 278,400.95

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Solution

The fourth proportional to 544,453.55, 816,846.47 and 278,400.95 is: 417,686.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,453.55 : 816,846.47 = 278,400.95 : x
  2. Step 2: Convert to fraction form
    544,453.55/816,846.47 = 278,400.95/x
  3. Step 3: Cross multiply
    544,453.55x = 816,846.47 × 278,400.95
  4. Step 4: Simplify right side
    544,453.55x = 227,410,833,449.09
  5. Step 5: Solve for x
    x = 227,410,833,449.09/544,453.55
  6. Step 6: Final answer
    x = 417,686.38

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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.