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Finding the Fourth Proportional to 561,600.09, 774,996.73 and 306,953.10

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Solution

The fourth proportional to 561,600.09, 774,996.73 and 306,953.10 is: 423,589.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,600.09 : 774,996.73 = 306,953.10 : x
  2. Step 2: Convert to fraction form
    561,600.09/774,996.73 = 306,953.10/x
  3. Step 3: Cross multiply
    561,600.09x = 774,996.73 × 306,953.10
  4. Step 4: Simplify right side
    561,600.09x = 237,887,647,995.98
  5. Step 5: Solve for x
    x = 237,887,647,995.98/561,600.09
  6. Step 6: Final answer
    x = 423,589.05

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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.