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Finding the Fourth Proportional to 578,370.96, 798,151.80 and 323,722.20

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Solution

The fourth proportional to 578,370.96, 798,151.80 and 323,722.20 is: 446,736.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,370.96 : 798,151.80 = 323,722.20 : x
  2. Step 2: Convert to fraction form
    578,370.96/798,151.80 = 323,722.20/x
  3. Step 3: Cross multiply
    578,370.96x = 798,151.80 × 323,722.20
  4. Step 4: Simplify right side
    578,370.96x = 258,379,456,629.96
  5. Step 5: Solve for x
    x = 258,379,456,629.96/578,370.96
  6. Step 6: Final answer
    x = 446,736.57

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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.