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Finding the Fourth Proportional to 592,374.91, 816,627.13 and 422,313.79

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Solution

The fourth proportional to 592,374.91, 816,627.13 and 422,313.79 is: 582,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,374.91 : 816,627.13 = 422,313.79 : x
  2. Step 2: Convert to fraction form
    592,374.91/816,627.13 = 422,313.79/x
  3. Step 3: Cross multiply
    592,374.91x = 816,627.13 × 422,313.79
  4. Step 4: Simplify right side
    592,374.91x = 344,872,898,287.12
  5. Step 5: Solve for x
    x = 344,872,898,287.12/592,374.91
  6. Step 6: Final answer
    x = 582,186.88

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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.