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Finding the Fourth Proportional to 517,348.04, 713,932.98 and 290,993

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Solution

The fourth proportional to 517,348.04, 713,932.98 and 290,993 is: 401,566.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,348.04 : 713,932.98 = 290,993 : x
  2. Step 2: Convert to fraction form
    517,348.04/713,932.98 = 290,993/x
  3. Step 3: Cross multiply
    517,348.04x = 713,932.98 × 290,993
  4. Step 4: Simplify right side
    517,348.04x = 207,749,499,649.14
  5. Step 5: Solve for x
    x = 207,749,499,649.14/517,348.04
  6. Step 6: Final answer
    x = 401,566.23

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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.