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Finding the Fourth Proportional to 404,582.80, 606,193.80 and 320,018.80

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Solution

The fourth proportional to 404,582.80, 606,193.80 and 320,018.80 is: 479,490.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,582.80 : 606,193.80 = 320,018.80 : x
  2. Step 2: Convert to fraction form
    404,582.80/606,193.80 = 320,018.80/x
  3. Step 3: Cross multiply
    404,582.80x = 606,193.80 × 320,018.80
  4. Step 4: Simplify right side
    404,582.80x = 193,993,412,443.44
  5. Step 5: Solve for x
    x = 193,993,412,443.44/404,582.80
  6. Step 6: Final answer
    x = 479,490.01

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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.