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Finding the Fourth Proportional to 616,561.80, 925,793.10 and 336,625.80

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Solution

The fourth proportional to 616,561.80, 925,793.10 and 336,625.80 is: 505,457.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,561.80 : 925,793.10 = 336,625.80 : x
  2. Step 2: Convert to fraction form
    616,561.80/925,793.10 = 336,625.80/x
  3. Step 3: Cross multiply
    616,561.80x = 925,793.10 × 336,625.80
  4. Step 4: Simplify right side
    616,561.80x = 311,645,842,921.98
  5. Step 5: Solve for x
    x = 311,645,842,921.98/616,561.80
  6. Step 6: Final answer
    x = 505,457.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.