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Finding the Fourth Proportional to 673,806.10, 1,010,709.15 and 483,865.15

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Solution

The fourth proportional to 673,806.10, 1,010,709.15 and 483,865.15 is: 725,797.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,806.10 : 1,010,709.15 = 483,865.15 : x
  2. Step 2: Convert to fraction form
    673,806.10/1,010,709.15 = 483,865.15/x
  3. Step 3: Cross multiply
    673,806.10x = 1,010,709.15 × 483,865.15
  4. Step 4: Simplify right side
    673,806.10x = 489,046,934,471.12
  5. Step 5: Solve for x
    x = 489,046,934,471.12/673,806.10
  6. Step 6: Final answer
    x = 725,797.73

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Double scale
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Similar ratio
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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.