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Finding the Fourth Proportional to 578,041.58, 797,669.92 and 316,391.13

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Solution

The fourth proportional to 578,041.58, 797,669.92 and 316,391.13 is: 436,604.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,041.58 : 797,669.92 = 316,391.13 : x
  2. Step 2: Convert to fraction form
    578,041.58/797,669.92 = 316,391.13/x
  3. Step 3: Cross multiply
    578,041.58x = 797,669.92 × 316,391.13
  4. Step 4: Simplify right side
    578,041.58x = 252,375,684,163.66
  5. Step 5: Solve for x
    x = 252,375,684,163.66/578,041.58
  6. Step 6: Final answer
    x = 436,604.72

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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.