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Finding the Fourth Proportional to 560,478.54, 773,453.94 and 305,833.98

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Solution

The fourth proportional to 560,478.54, 773,453.94 and 305,833.98 is: 422,047.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,478.54 : 773,453.94 = 305,833.98 : x
  2. Step 2: Convert to fraction form
    560,478.54/773,453.94 = 305,833.98/x
  3. Step 3: Cross multiply
    560,478.54x = 773,453.94 × 305,833.98
  4. Step 4: Simplify right side
    560,478.54x = 236,548,496,816.88
  5. Step 5: Solve for x
    x = 236,548,496,816.88/560,478.54
  6. Step 6: Final answer
    x = 422,047.38

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1.5x scale

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.