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Finding the Fourth Proportional to 578,023.71, 797,659.92 and 316,377.69

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Solution

The fourth proportional to 578,023.71, 797,659.92 and 316,377.69 is: 436,594.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,023.71 : 797,659.92 = 316,377.69 : x
  2. Step 2: Convert to fraction form
    578,023.71/797,659.92 = 316,377.69/x
  3. Step 3: Cross multiply
    578,023.71x = 797,659.92 × 316,377.69
  4. Step 4: Simplify right side
    578,023.71x = 252,361,802,895.19
  5. Step 5: Solve for x
    x = 252,361,802,895.19/578,023.71
  6. Step 6: Final answer
    x = 436,594.21

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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.