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Finding the Fourth Proportional to 586,649.31, 809,555.49 and 331,995.03

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Solution

The fourth proportional to 586,649.31, 809,555.49 and 331,995.03 is: 458,141.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,649.31 : 809,555.49 = 331,995.03 : x
  2. Step 2: Convert to fraction form
    586,649.31/809,555.49 = 331,995.03/x
  3. Step 3: Cross multiply
    586,649.31x = 809,555.49 × 331,995.03
  4. Step 4: Simplify right side
    586,649.31x = 268,768,399,189.22
  5. Step 5: Solve for x
    x = 268,768,399,189.22/586,649.31
  6. Step 6: Final answer
    x = 458,141.51

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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.