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Finding the Fourth Proportional to 886,401.68, 1,223,229.48 and 483,990.80

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Solution

The fourth proportional to 886,401.68, 1,223,229.48 and 483,990.80 is: 667,904.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,401.68 : 1,223,229.48 = 483,990.80 : x
  2. Step 2: Convert to fraction form
    886,401.68/1,223,229.48 = 483,990.80/x
  3. Step 3: Cross multiply
    886,401.68x = 1,223,229.48 × 483,990.80
  4. Step 4: Simplify right side
    886,401.68x = 592,031,814,608.78
  5. Step 5: Solve for x
    x = 592,031,814,608.78/886,401.68
  6. Step 6: Final answer
    x = 667,904.66

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Double scale
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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.