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Finding the Fourth Proportional to 586,129.64, 808,680.31 and 327,979.80

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Solution

The fourth proportional to 586,129.64, 808,680.31 and 327,979.80 is: 452,512.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,129.64 : 808,680.31 = 327,979.80 : x
  2. Step 2: Convert to fraction form
    586,129.64/808,680.31 = 327,979.80/x
  3. Step 3: Cross multiply
    586,129.64x = 808,680.31 × 327,979.80
  4. Step 4: Simplify right side
    586,129.64x = 265,230,805,517.79
  5. Step 5: Solve for x
    x = 265,230,805,517.79/586,129.64
  6. Step 6: Final answer
    x = 452,512.19

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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.