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Finding the Fourth Proportional to 582,090.99, 803,164.59 and 340,326.78

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Solution

The fourth proportional to 582,090.99, 803,164.59 and 340,326.78 is: 469,580.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,090.99 : 803,164.59 = 340,326.78 : x
  2. Step 2: Convert to fraction form
    582,090.99/803,164.59 = 340,326.78/x
  3. Step 3: Cross multiply
    582,090.99x = 803,164.59 × 340,326.78
  4. Step 4: Simplify right side
    582,090.99x = 273,338,418,724.72
  5. Step 5: Solve for x
    x = 273,338,418,724.72/582,090.99
  6. Step 6: Final answer
    x = 469,580.23

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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.