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Finding the Fourth Proportional to 543,003.90, 814,501.80 and 163,923.90

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Solution

The fourth proportional to 543,003.90, 814,501.80 and 163,923.90 is: 245,884.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,003.90 : 814,501.80 = 163,923.90 : x
  2. Step 2: Convert to fraction form
    543,003.90/814,501.80 = 163,923.90/x
  3. Step 3: Cross multiply
    543,003.90x = 814,501.80 × 163,923.90
  4. Step 4: Simplify right side
    543,003.90x = 133,516,311,613.02
  5. Step 5: Solve for x
    x = 133,516,311,613.02/543,003.90
  6. Step 6: Final answer
    x = 245,884.63

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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.