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Finding the Fourth Proportional to 612,589.86, 845,250.12 and 357,891.84

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Solution

The fourth proportional to 612,589.86, 845,250.12 and 357,891.84 is: 493,818.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,589.86 : 845,250.12 = 357,891.84 : x
  2. Step 2: Convert to fraction form
    612,589.86/845,250.12 = 357,891.84/x
  3. Step 3: Cross multiply
    612,589.86x = 845,250.12 × 357,891.84
  4. Step 4: Simplify right side
    612,589.86x = 302,508,122,049.12
  5. Step 5: Solve for x
    x = 302,508,122,049.12/612,589.86
  6. Step 6: Final answer
    x = 493,818.36

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1.5x scale

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.